| 释义 |
ovule
\ˈä(ˌ)vyül, ˈōv-\ noun
(-s)
Etymology: New Latin ovulum ovule of a seed plant, small egg, from Latin ovum egg + -ulum
1. : a rounded outgrowth of the ovary in seed plants that develops into a seed usually only after fertilization and that consists of an embryo sac borne centrally within a nucellus, the latter surrounded by one or more integuments
2. : a small egg : an egg in an early stage of growth |