Crossword clues for ovule
ovule
- Developing egg
- Plant seed-to-be
- Elementary seed
- Plant organ
- Unfertilised seed
- Undeveloped seed
- Tiny egg
- Seed's botanical precursor
- Growing egg
- Embryo-sac encloser
- Undeveloped egg cell
- Small egg, biologically
- Small egg or seed
- Seedy structure?
- Seed's start
- Seed in the making
- Reproductive female germ cell
- Reproductive egg cell
- Potential seed
- Minute plant structure
- Item in a gynoecium
- It becomes a seed
- Immature ovum
- Immature gamete
- Fertilizer target, on a plant
- Embryo sac site
- Embryo sac holder
- Early stage seed
- Developing seed
- Botanic structure
- Seed structure
- Small egg, to a biologist
- Rudimentary seed
- Fertilization site
- Embryo sac encloser
- Future seed
- Seed-to-be
- Little egg
- Reproductive cell
- Proto-seed
- Fertilized item
- Immature egg, to a zoologist
- A small body that contains the female germ cell of a plant
- Develops into a seed after fertilization
- A small or immature ovum
- Seed-plant outgrowth
- Small seed
- Botanical seed-to-be
- Immature seed
- Seed source
- Part of a seed plant
- Plant part that develops into a seed
- Outgrowth of a seed plant
- Egglet
- Small part of what comes next said you fell in love head over heels
- Small body containing the female germ cell of a plant
- Plant's part, without mike, volume adjusted
- Part of a plant which becomes the seed
- Egg cell
- Germ cell
The Collaborative International Dictionary
Ovule \O"vule\, n. [Dim. of L. ovum an egg: cf. F. ovule. Cf. Ovolo, Ovulum.] (Biol.)
The rudiment of a seed. It grows from a placenta, and consists of a soft nucleus within two delicate coatings. The attached base of the ovule is the hilum, the coatings are united with the nucleus at the chalaza, and their minute orifice is the foramen.
An ovum.
Douglas Harper's Etymology Dictionary
1821, from French ovule and directly from Modern Latin ovulum, literally "small egg," diminutive of Latin ovum "egg" (see ovum).
Wiktionary
n. 1 (context botany English) The structure in a plant that develops into a seed after fertilization; the megasporangium of a seed plant with its enclosing integuments. 2 (context zoology English) An immature ovum in mammals.
WordNet
n. a small body that contains the female germ cell of a plant; develops into a seed after fertilization
a small or immature ovum
Wikipedia
In seed plants, the ovule ("small egg") is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: The integument(s) forming its outer layer(s), the nucellus (or remnant of the megasporangium), and female gametophyte (formed from haploid megaspore) in its center. The female gametophyte—specifically termed a megagametophyte—is also called the embryo sac in angiosperms. The megagametophyte produces an egg cell (or several egg cells in some groups) for the purpose of fertilization. After fertilization, the ovule develops into a seed.
Usage examples of "ovule".
There must sometimes be a physical impossibility in the male element reaching the ovule, as would be the case with a plant having a pistil too long for the pollen-tubes to reach the ovarium.
Although the plants in these experiments appeared perfectly healthy, and although both the ovules and pollen of the same flower were perfectly good with respect to other species, yet as they were functionally imperfect in their mutual self-action, we must infer that the plants were in an unnatural state.
Thus in plants, the office of the pistil is to allow the pollen-tubes to reach the ovules protected in the ovarium at its base.
Of his many important statements I will here give only a single one as an example, namely, that 'every ovule in a pod of Crinum capense fertilised by C.
If we admire the several ingenious contrivances, by which the flowers of the orchis and of many other plants are fertilised through insect agency, can we consider as equally perfect the elaboration by our fir-trees of dense clouds of pollen, in order that a few granules may be wafted by a chance breeze on to the ovules?
As the pollen tube grows the vegetative cell remains in the pollen grain while the generative cell enters the pollen tube and migrates toward the ovule.
The tube contains a haploid (in) generative nucleus and grows downward toward the ovule at the base of the pistils.
Pollen and ovules are formed by reduction divi- sions (meiosis) in which the 10 chromosome pairs fail to replicate, so that each of the two daughter-cells contains one-half of the chromosomes from the mother cell.
And when a pollen grain lands on a pistil and joins with the ovule prepared in the ovary, the two components are united again.
Although the plants in these experiments appeared perfectly healthy, and although both the ovules and pollen of the same flower were perfectly good with respect to other species, yet as they were functionally imperfection their mutual self-action, we must infer that the plants were in an unnatural state.
Soon after fertilization, the pistils wither away as the ovule and surrounding calyx begin to swell.