单词 | raphide |
释义 | raphide in British English (ˈreɪfaɪd) or raphis (ˈreɪfɪs) nounWord forms: plural raphides (ˈræfɪˌdiːz) any of numerous needle-shaped crystals, usually of calcium oxalate, that occur in many plant cells as a metabolic product Word origin C18: from French, from Greek rhaphis needleraphide in American English (ˈreɪfɪd; ˈræfɪd) nounWord forms: plural ˈraphiˌdes (ˈræfəˌdiz; ˈreɪfɪdz) Botany a needle-shaped crystal, usually of calcium oxalate, developed singly, or more often in bundles, in a plant cell Word origin ModL < Gr rhaphis (gen. rhaphidos), needle: for IE base see raphe |
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