"undercompressive" meaning in English

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  "etymology_text": "From under- + compressive.",
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      "expansion": "undercompressive (not comparable)",
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  "lang_code": "en",
  "pos": "adj",
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          "ref": "2016, Joy C. Perkinson, Michael J. Aziz, Michael P. Brenner, Miranda Holmes-Cerfon, “Designing steep, sharp patterns on uniformly ion-bombarded surfaces”, in arXiv:",
          "text": "We derive the evolution equation for the curves by considering long-wavelength perturbations to the one-dimensional traveling wave, using the unusual boundary conditions required for an undercompressive shock, and we show this equation accurately describes the evolution of shapes on surfaces, both in simulations and in experiments.",
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        "Less than normally compressive"
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      "wikipedia": [
        "en:Undercompressive shock wave"
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      "rhymes": "-ɛsɪv"
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  "word": "undercompressive"
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  "etymology_text": "From under- + compressive.",
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      "glosses": [
        "Less than normally compressive"
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        "en:Undercompressive shock wave"
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  "word": "undercompressive"
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