Advertisement
Advertisement
micropyle
[mahy-kruh-pahyl]
noun
Zoology.any minute opening in an ovum through which a spermatozoon can enter, as in many insects.
Botany.the minute orifice or opening in the integuments of an ovule.
micropyle
/ ˈɪəʊˌ貹ɪ /
noun
a small opening in the integuments of a plant ovule through which the male gametes pass
a small pore in the shell of an insect's eggs through which the sperm passes
micropyle
A minute opening in the ovule of a seed plant through which the pollen tube usually enters.
A pore in the membrane covering the ovum of some animals through which a spermatozoon can enter.
Other 51Թ Forms
- micropylar adjective
- ˌˈ adjective
51Թ History and Origins
Origin of micropyle1
51Թ History and Origins
Origin of micropyle1
Example Sentences
Inverted and straight, with the micropyle next the hilum and the radicle consequently inferior.
At one end a cap-like portion of this forms a detachable operculum, in the middle of which is a minute opening, the micropyle.
The female flower is enveloped in a closely fitting sac-like investment, which must be regarded as a perianth; within this is an orthotropous ovule surrounded by a single integument prolonged upwards as a beak-like micropyle.
The radicular extremity points towards the micropyle, while the cotyledonary extremity is pointed towards the base of the ovule or the chalaza.
The micropyle indicates the organic apex of the ovule.
Advertisement
Advertisement
Advertisement
Advertisement
Browse
