| 单词 |
vitellarium |
| 释义 |
vitellarium
vi·tel·lar·i·um V0127750 (vīt′l-âr′ē-əm, vĭt′-)n. pl. vi·tel·lar·i·ums or vi·tel·lar·i·a (-ē-ə) A group of glands in flatworms and certain other invertebrates that secrete yolk.
[New Latin, from Latin vitellus, egg yolk; see vitellus.]vitellarium
vitellarium[‚vid·əl′ar·ē·əm] (invertebrate zoology) The part of the ovary in certain rotifers and flatworms that produces nutritive cells filled with yolk. Also known as yolk larva. vitellarium
vit·el·lar·i·um (vit'ĕl-lar'ē-ŭm), In cestodes and trematodes, a common chamber receiving vitelline (yolk) material from the two vitelline ducts; the yolk material then passes into the ootype to surround the ovum with nutritive vitelline granules that are enclosed by a characteristically formed eggshell. Synonym(s): vitelline reservoirvitellarium (vīt′l-âr′ē-əm, vĭt′-)n. pl. vitellar·iums or vitellar·ia (-ē-ə) A group of glands in flatworms and certain other invertebrates that secrete yolk. |
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