单词 | perignathic |
释义 | > as lemmasperignathic perignathic adj. Brit. , U.S. situated around the jaws; spec. designating a girdle of processes surrounding the mouth of a sea urchin, which serves as the site of attachment of the muscles of the chewing apparatus.ΚΠ 1885 Athenæum 4 Dec. 736 He suggests the substitution of the term ‘perignathic girdle’. 1962 D. Nichols Echinoderms v. 66 Round the mouth is a strong perignathic girdle consisting of modified ambulacral and interambulacral plates. 1995 Philos. Trans. (Royal Soc.) B. 347 229/2 Perignathic girdle more or less pentaradially symmetric. < as lemmas |
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