- anatropous ovule
- nouna completely inverted ovule turned back 180 degrees on its stalk• Hypernyms: ↑ovule
Useful english dictionary. 2012.
anatropous ovule
Look at other dictionaries:
anatropous — [ə na′trə pəs] adj. [ModL anatropus: see ANA & TROPOUS] Bot. having a flower ovule with an inverted structure, with the stalk attachment near the top and the opening near the bottom: the most common form for angiosperms … English World dictionary
ovule — [äv′yo͞ol΄, ō′vyo͞ol΄] n. [Fr < ModL ovulum, dim. < L ovum,EGG1] a small egg or seed, esp. one in an early stage of development; specif., a) Bot. a structure in seed plants consisting of a nucellus that contains an embryo sac: it develops… … English World dictionary
ovule — /ov yoohl, oh vyoohl/, n. 1. Bot. a. a rudimentary seed. b. the plant part that contains the embryo sac and hence the female germ cell, which after fertilization develops into a seed. 2. Biol. a small egg. [1820 30; < L ovulum little egg. See… … Universalium
Anatropous — Anatropal A*nat ro*pal, Anatropous A*nat ro*pous, a. [Gr. ? up + ? to turn.] (Bot.) Having the ovule inverted at an early period in its development, so that the chalaza is as the apparent apex; opposed to {orthotropous}. Gray. [1913 Webster] … The Collaborative International Dictionary of English
anatropous — adjective Date: circa 1846 having or being a plant ovule inverted so that the micropyle is bent down to the funiculus to which the body of the ovule is united … New Collegiate Dictionary
anatropous — /euh na treuh peuhs/, adj. Bot. (of an ovule) inverted at an early stage of growth, so that the micropyle is turned toward the funicle and the embryonic root is at the opposite end. [1840 50; ANA + TROPOUS] * * * … Universalium
anatropous — /əˈnætrəpəs/ (say uh natruhpuhs) adjective (of an ovule) inverted at an early stage of growth, so that the micropyle is turned towards the funicle, the chalaza being situated at the opposite end. {New Latin anatropus inverted. See ana , tropous} …
anatropous — adjective (of a plant ovule) completely inverted; turned back 180 degrees on its stalk • Syn: ↑inverted • Ant: ↑amphitropous • Topics: ↑plant, ↑flora, ↑plant life … Useful english dictionary
raphe — Rhaphe Rha phe, n. [NL., fr. Gr. ??? seam, fr. ??? to sew. ] (Bot.) The continuation of the seed stalk along the side of an anatropous ovule or seed, forming a ridge or seam. [Written also {raphe}.] Gray. [1913 Webster] … The Collaborative International Dictionary of English
Rhaphe — Rha phe, n. [NL., fr. Gr. ??? seam, fr. ??? to sew. ] (Bot.) The continuation of the seed stalk along the side of an anatropous ovule or seed, forming a ridge or seam. [Written also {raphe}.] Gray. [1913 Webster] … The Collaborative International Dictionary of English
