| 释义 |
Ootype
O´o`type
| n. | 1. | (Zool.) The part of the oviduct of certain trematode worms in which the ova are completed and furnished with a shell. |
ootype
ootype[′ō·ə‚tīp] (invertebrate zoology) In trematodes and tapeworms, a thickening of the oviduct near the ovaries. ootype
o·o·type (ō'ō-tīp), The central portion of the ovarian complex of trematodes and cestodes in which fertilization takes place and the vitellarian or eggshell materials are coated over the egg; this occurs in a rapid, stamping-mill sequence, after which eggs pass into the uterus for tanning of the shell, storage, and passage toward the genital pore. [G. ōon, egg, + typos, stamp, print] |