| 单词 | nurse form |
| 释义 | > as lemmasnurse form c. (In sense 5b.) nurse form, nurse zooid, etc. ΚΠ 1845 G. Busk tr. J. J. S. Steenstrup On Alternation of Generations 89 (note) A confounding of ‘nurse’-germs and Cercaria-germs may occur very readily. 1876 Philos. Trans. (Royal Soc.) 166 117 In the nurse-stocks of several species of Fungia a kind of intracalicinal gemmation appears to take place... It is owing to this mode of growth that the stems of the nurse-stock become jointed. 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 445 Sexual organs are absent, or at least atrophied, in the nurse forms of Salpa and Doliolum. 1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) xxxii. 186/2 Doliolids have a more extreme cycle in which a sexually-produced larval stage develops into a nurse oozooid that buds to give strings of daughter zooids that remain attached. 1994 Q. Rev. Biol. 69 169/1 Oozooid: acts as a nurse zooid for a generation of blastozooids, loses feeding capability. < as lemmas |
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