See rontosecond in All languages combined, or Wiktionary
{
"etymology_templates": [
{
"args": {
"1": "en",
"2": "ronto",
"3": "second"
},
"expansion": "ronto- + second",
"name": "prefix"
}
],
"etymology_text": "From ronto- + second.",
"forms": [
{
"form": "rontoseconds",
"tags": [
"plural"
]
}
],
"head_templates": [
{
"args": {},
"expansion": "rontosecond (plural rontoseconds)",
"name": "en-noun"
}
],
"lang": "English",
"lang_code": "en",
"pos": "noun",
"senses": [
{
"categories": [
{
"kind": "other",
"name": "English entries with incorrect language header",
"parents": [],
"source": "w"
},
{
"kind": "other",
"name": "English terms prefixed with ronto-",
"parents": [],
"source": "w"
},
{
"kind": "other",
"name": "Pages with 1 entry",
"parents": [],
"source": "w"
},
{
"kind": "other",
"name": "Pages with entries",
"parents": [],
"source": "w"
},
{
"kind": "other",
"langcode": "en",
"name": "Metrology",
"orig": "en:Metrology",
"parents": [],
"source": "w"
},
{
"kind": "other",
"langcode": "en",
"name": "SI units",
"orig": "en:SI units",
"parents": [],
"source": "w"
}
],
"examples": [
{
"bold_text_offsets": [
[
504,
516
]
],
"ref": "2022 December 16, bigbunguses, Brooklynxman, “I’m literally the only person watching Avatar 2 in my theater”, in reddit.com:",
"text": "No. Say there are 100 seats and it takes 2 seconds to swap seats. After about 12 seats the remaining 88 seats are all <1 second per seat, but you have nearly 3 minutes swapping time. So remove the 198 seconds for every seat swap leaving 7,002 seconds. The fastest human action is a fingersnap at .007 seconds. You'll drop below that by seat 20, meaning it is no longer possible for a human to touch a seat that quickly intentionally. Seat 100 you sit in for .0000000000000000000000000055 seconds, or 5.5 rontoseconds. You haven't quite hit Plank time here, so it is at least physically possible to have something do this, but its so outside the human ability to comprehend a trillion trillion of them makes it to the very edge of human perception. The shortest possible laser pulse is 1 billion times longer than this. A 5 GHz processor is one quintillion times slower than this.",
"type": "quotation"
},
{
"bold_text_offsets": [
[
182,
194
]
],
"ref": "2023 April 11, GunHat, r s, “Excession (Culture) vs Beerus (DBS)”, in forums.spacebattles.com:",
"text": "Beerus can fly across the universe in minutes which places him at quadrillions of C°. Assuming he can react to his own travel speed from 1m away he would have a reaction time of 800 rontoseconds. To react to the excessions existence, cross 20m, and use hakai would take approx 16 yoctoseconds.",
"type": "quotation"
},
{
"bold_text_offsets": [
[
213,
225
]
],
"ref": "2024, J. Martin Strangeweather, The Eidetic Afterlife Hypothesis, Santa Ana Literary Association, →ISBN, page 107:",
"text": "Do you liken eternity to an endless succession of days? That’s just your mortal perspective framing the concept. Infinite degrees of separation (picoseconds, femtoseconds, attoseconds, zeptoseconds, yoctoseconds, rontoseconds, quectoseconds, etcetera) exist between any nanosecond and its immediate successor.",
"type": "quotation"
},
{
"bold_text_offsets": [
[
0,
11
]
],
"ref": "2025 March 20, R74n, “Universal Feedback System (UFBS)”, in archive.org:",
"text": "Rontosecond",
"type": "quotation"
},
{
"bold_text_offsets": [
[
196,
207
]
],
"ref": "2025 May 23, King Chimera (chimera_4212), “N/A”, in x.com:",
"text": "Hxh son all day any week and any hour any minute any second, any millisecond, any microsecond, any nanosecond any picosecond any femtosecond, any attosecond, any zeptosecond, any yoctosecond, any rontosecond, any quectosecond",
"type": "quotation"
},
{
"bold_text_offsets": [
[
259,
271
]
],
"ref": "2025 October 7, baldigaming285, somesillysprunker, “can we all laugh at this guy”, in reddit.com:",
"text": "sprunker: \"ok ill delay the update by 67 years, 67 months, 67 days, 67 hours, 67 seconds, 67 deciseconds, 67 centiseconds, 67 milliseconds, 67 microseconds, 67 nanoseconds, 67 picoseconds, 67 femtoseconds, 67 attoseconds, 67 zeptoseconds, 67 yoctoseconds, 67 rontoseconds, 67 quectoseconds, and 67... plank ^([sic]) time????\".",
"type": "quotation"
},
{
"bold_text_offsets": [
[
0,
11
]
],
"ref": "2025, R74n, Universal Feedback System (UFBS), N/A, page 107:",
"text": "Rontosecond",
"type": "quotation"
}
],
"glosses": [
"An SI unit of time equal to 10⁻²⁷ seconds. Symbol: rs"
],
"id": "en-rontosecond-en-noun-en:Q125387265",
"links": [
[
"metrology",
"metrology"
],
[
"time",
"time#English"
],
[
"second",
"second"
],
[
"rs",
"rs"
]
],
"raw_glosses": [
"(metrology) An SI unit of time equal to 10⁻²⁷ seconds. Symbol: rs"
],
"related": [
{
"tags": [
"alternative"
],
"word": "mul:rs"
}
],
"senseid": [
"en:Q125387265"
],
"topics": [
"metrology"
],
"wikidata": [
"Q125387265"
],
"wikipedia": [
"second"
]
}
],
"sounds": [
{
"ipa": "/ˈɹɑn.toʊˌsɛk.ənd/",
"tags": [
"General-American"
]
}
],
"word": "rontosecond"
}
{
"etymology_templates": [
{
"args": {
"1": "en",
"2": "ronto",
"3": "second"
},
"expansion": "ronto- + second",
"name": "prefix"
}
],
"etymology_text": "From ronto- + second.",
"forms": [
{
"form": "rontoseconds",
"tags": [
"plural"
]
}
],
"head_templates": [
{
"args": {},
"expansion": "rontosecond (plural rontoseconds)",
"name": "en-noun"
}
],
"lang": "English",
"lang_code": "en",
"pos": "noun",
"senses": [
{
"categories": [
"English countable nouns",
"English entries with incorrect language header",
"English lemmas",
"English nouns",
"English terms prefixed with ronto-",
"English terms with quotations",
"Pages with 1 entry",
"Pages with entries",
"en:Metrology",
"en:SI units"
],
"examples": [
{
"bold_text_offsets": [
[
504,
516
]
],
"ref": "2022 December 16, bigbunguses, Brooklynxman, “I’m literally the only person watching Avatar 2 in my theater”, in reddit.com:",
"text": "No. Say there are 100 seats and it takes 2 seconds to swap seats. After about 12 seats the remaining 88 seats are all <1 second per seat, but you have nearly 3 minutes swapping time. So remove the 198 seconds for every seat swap leaving 7,002 seconds. The fastest human action is a fingersnap at .007 seconds. You'll drop below that by seat 20, meaning it is no longer possible for a human to touch a seat that quickly intentionally. Seat 100 you sit in for .0000000000000000000000000055 seconds, or 5.5 rontoseconds. You haven't quite hit Plank time here, so it is at least physically possible to have something do this, but its so outside the human ability to comprehend a trillion trillion of them makes it to the very edge of human perception. The shortest possible laser pulse is 1 billion times longer than this. A 5 GHz processor is one quintillion times slower than this.",
"type": "quotation"
},
{
"bold_text_offsets": [
[
182,
194
]
],
"ref": "2023 April 11, GunHat, r s, “Excession (Culture) vs Beerus (DBS)”, in forums.spacebattles.com:",
"text": "Beerus can fly across the universe in minutes which places him at quadrillions of C°. Assuming he can react to his own travel speed from 1m away he would have a reaction time of 800 rontoseconds. To react to the excessions existence, cross 20m, and use hakai would take approx 16 yoctoseconds.",
"type": "quotation"
},
{
"bold_text_offsets": [
[
213,
225
]
],
"ref": "2024, J. Martin Strangeweather, The Eidetic Afterlife Hypothesis, Santa Ana Literary Association, →ISBN, page 107:",
"text": "Do you liken eternity to an endless succession of days? That’s just your mortal perspective framing the concept. Infinite degrees of separation (picoseconds, femtoseconds, attoseconds, zeptoseconds, yoctoseconds, rontoseconds, quectoseconds, etcetera) exist between any nanosecond and its immediate successor.",
"type": "quotation"
},
{
"bold_text_offsets": [
[
0,
11
]
],
"ref": "2025 March 20, R74n, “Universal Feedback System (UFBS)”, in archive.org:",
"text": "Rontosecond",
"type": "quotation"
},
{
"bold_text_offsets": [
[
196,
207
]
],
"ref": "2025 May 23, King Chimera (chimera_4212), “N/A”, in x.com:",
"text": "Hxh son all day any week and any hour any minute any second, any millisecond, any microsecond, any nanosecond any picosecond any femtosecond, any attosecond, any zeptosecond, any yoctosecond, any rontosecond, any quectosecond",
"type": "quotation"
},
{
"bold_text_offsets": [
[
259,
271
]
],
"ref": "2025 October 7, baldigaming285, somesillysprunker, “can we all laugh at this guy”, in reddit.com:",
"text": "sprunker: \"ok ill delay the update by 67 years, 67 months, 67 days, 67 hours, 67 seconds, 67 deciseconds, 67 centiseconds, 67 milliseconds, 67 microseconds, 67 nanoseconds, 67 picoseconds, 67 femtoseconds, 67 attoseconds, 67 zeptoseconds, 67 yoctoseconds, 67 rontoseconds, 67 quectoseconds, and 67... plank ^([sic]) time????\".",
"type": "quotation"
},
{
"bold_text_offsets": [
[
0,
11
]
],
"ref": "2025, R74n, Universal Feedback System (UFBS), N/A, page 107:",
"text": "Rontosecond",
"type": "quotation"
}
],
"glosses": [
"An SI unit of time equal to 10⁻²⁷ seconds. Symbol: rs"
],
"links": [
[
"metrology",
"metrology"
],
[
"time",
"time#English"
],
[
"second",
"second"
],
[
"rs",
"rs"
]
],
"raw_glosses": [
"(metrology) An SI unit of time equal to 10⁻²⁷ seconds. Symbol: rs"
],
"related": [
{
"tags": [
"alternative"
],
"word": "mul:rs"
}
],
"senseid": [
"en:Q125387265"
],
"topics": [
"metrology"
],
"wikidata": [
"Q125387265"
],
"wikipedia": [
"second"
]
}
],
"sounds": [
{
"ipa": "/ˈɹɑn.toʊˌsɛk.ənd/",
"tags": [
"General-American"
]
}
],
"word": "rontosecond"
}
Download raw JSONL data for rontosecond meaning in English (4.4kB)
This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2026-01-13 from the enwiktionary dump dated 2026-01-01 using wiktextract (96027d6 and 9905b1f). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.
If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.