单词 | neck canal |
释义 | > as lemmasneck canal neck canal n. Botany the channel within the neck of an archegonium. ΘΚΠ the world > plants > part of plant > reproductive part(s) > spore or sporule > cryptogam or plant having spores > [noun] > parts of > archegonium or female sex organ > neck canal neck1857 neck canal1887 1887 W. Hillhouse tr. E. Strasburger Handbk. Pract. Bot. xxv. 275 The neck [of the archegonium] is traversed by the neck-canal, which is composed of a series of neck canal-cells, the walls between which are dissolved, and the disorganized contents of the four neck canal-cells are thus fused into a connected string. 1957 New Biol. 22 116 In effecting fertilization the spermatozoid has to traverse a lengthy ‘neck-canal’, a distance perhaps 200 times its own length. 1994 Mycologia 86 82-88 A small cavity forms just beyond the tips of the paraphyses when the neck and neck canal begin formation. < as lemmas |
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