单词 | infusoriform |
释义 | infusoriformadj. Having the form of an infusorian. Usually spec. designating or pertaining to a stage in the life-cycle of species of the order Dicyemida (phylum Mesozoa), which comprises parasites of certain cephalopods. ΘΚΠ the world > animals > invertebrates > protozoa > class Infusoria > [adjective] > having form of infusorian infusorioid1853 infusoriform1877 1877 T. H. Huxley Man. Anat. Invertebrated Animals xi. 654 The embryos are of two kinds, the one vermiform, the other infusoriform. 1877 Q. Jrnl. Microsc. Sci. 17 143 The infusoriform embryo probably distributes the species by transmitting the parasite from one cephalopod to another. 1883 Mitt. Zool. Station zu Neapel IV. 41 The infusoriform embryos desert the parent before the development of vermiform embryos begins. 1940 L. H. Hyman Invertebrates I. iv. 236 The infusoriform stage is an asexual larva. 1964 T. C. Cheng Biol. Animal Parasites vii. 179/1 The infusoriform larvae escape from the parent rhombogen and leave the host. 1967 H. W. Levi & L. R. Levi tr. A. Kaestner Invertebr. Zool. I. ii. 21 Only after fertilization do the ova detach, each developing into a short, egg-shaped dispersing infusoriform dicyemid. This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2018). < adj.1877 |
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