nu·cel·lus (n -s l  s, ny-)n. pl. nu·cel·li (-s l ) Botany The central portion of an ovule in which the embryo sac develops; the megasporangium. [New Latin, from nux, nuc-, nut.] nu·cel lar adj. |
nucellus [njuːˈsɛləs]
n pl -li [-laɪ]
(Life Sciences & Allied Applications / Botany) the central part of a plant ovule containing the embryo sac
[New Latin, from Latin nucella, from nux nut]
nucellar adj
| nucellus (n-sls) Plural nucelli (n -sl) The megasporangium of a seed-bearing plant, located in the ovule. In angiosperms, it is the central portion of the ovule in which the embryo sac develops. In some cases of apomixis (production of seeds without fertilization), cells of the nucellus develop into an embryo. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  nucellus - central part of a plant ovule; contains the embryo sacovule - a small body that contains the female germ cell of a plant; develops into a seed after fertilization plant part, plant structure - any part of a plant or fungus |
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