单词 | nectostem |
释义 | † nectostemn. Zoology. Obsolete. = nectosome n. ΚΠ 1880 Amer. Naturalist 14 621 There are two regions to be distinguished in the stem, which are known as the necto-stem and the polyp-stem. The former is known by appendages which act as means of propulsion, the latter by the polypites or feeding polyps. 1885 J. S. Kingsley Standard Nat. Hist. (1888) I. 99 Just below the float on the nectostem there is a small cluster of minute buds in which can be found nectocalices of all sizes. This entry has been updated (OED Third Edition, September 2003; most recently modified version published online June 2018). < n.1880 |
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