英语词汇“aptychus”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	aptychus
释义	‖ aptychus Palæont.\|ˈæptɪkəs\| Pl. aptychi. [mod.L., f. Gr. ἀ- priv. (a- 14) + πτυχή fold, layer.] A calcareous plate or pair of plates found in the terminal chamber of some ammonites. 1877Huxley Anat. Inv. Anim. 536 The Aptychi..occupy the middle of the posterior wall or terminal chamber of the Ammonite, and have their bases towards its mouth.1893H. Woods Palæont., Invert. vii. 176 In the last chamber of some Ammonites and a few other genera, a pair of calcareous or horny plates, known as the Aptychus, are occasionally found.
随便看	stampable stampage stamp and go stampant stamped stampede stampeder stampee stamper Stampian stampine stamping stampomania stam-wood -stan stan Stancarian stance stanch stanchel stancher stanchgrain stanchier stanching stanchion

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