spermatozoid

sper·mat·o·zo·id

S0629300 (spər-măt′ə-zō′ĭd, spûr′mə-tə-)n.1. A flagellated male gamete produced by an antheridium, found in certain algae, seedless plants, and gymnosperms. Also called antherozoid.2. A spermatozoon.

[spermatozo(on) + -id.]

spermatozoid

(ˌspɜːmətəʊˈzəʊɪd) n (Botany) botany another name for antherozoid

sper•mat•o•zo•id

(spɜrˌmæt əˈzoʊ ɪd)

n. a motile male gamete of a plant or fungus, produced in an antheridium. [1855–60]

Thesaurus

Noun

spermatozoid - a motile male gamete of a plant such as an alga or fern or gymnospermantherozoidgamete - a mature sexual reproductive cell having a single set of unpaired chromosomes

Translations

Spermatozoid

(also antherozoid), a male sexual cell of many plants. Spermatozoids with two or more flagella are found in green and brown algae and in some lower fungi, mosses, ferns, horsetails, club mosses, quillworts, selaginellas, Cycadopsida, and ginkgos.

Spermatozoids lack a cellulosic coat and are usually very small, with the exception of those in some Cycadopsida that reach 300 micrometers in diameter and are visible to the naked eye. In spite of their small size, they usually have a large nucleus and a small quantity of cytoplasm. The flagellum is situated at the anterior end of the spermatozoid, in the direction of movement. Movement toward ova is made possible by various chemical substances constituting the female sexual cells and organs.

Most spermatophytes are characterized by the presence of sperm, nonmotile male sexual cells that lack flagella, since fertilization in plants does not depend on a liquid medium.

REFERENCES

See references under .

L. V. DANILOVA

spermatozoid

sper·mat·o·zo·id

spermatozoid

sper•mat•o•zo•id

Spermatozoid

Spermatozoid

REFERENCES

spermatozoid

spermatozoid

spermatozoid

spermatozoid

Synonyms for spermatozoid

noun a motile male gamete of a plant such as an alga or fern or gymnosperm

Synonyms

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