sperm


Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.

sperm 1

 (spûrm)
n. pl. sperm or sperms
1. A male gamete, such as a spermatozoon of an animal or one of the cells or nuclei produced by a pollen grain of a plant. Also called sperm cell.
2. Semen.

[Middle English sperme, semen, from Old French esperme, from Late Latin sperma, from Greek; see sper- in Indo-European roots.]

sperm′ous adj.

sperm 2

 (spûrm)
n.
A substance, such as spermaceti, obtained from a sperm whale.

[Short for spermaceti.]

sperm

(spɜːm)
n, pl sperms or sperm
1. (Physiology) another name for semen
2. (Physiology) a male reproductive cell; male gamete
[C14: from Late Latin sperma, from Greek; related to Greek speirein to sow]

sperm

(spɜːm)
n
(Animals) short for sperm whale, spermaceti, sperm oil

sperm1

(spɜrm)

n., pl. sperm, sperms for 2.
1. a male reproductive cell; spermatozoon.
2. semen.
[1350–1400; Middle English sperme < Late Latin sperma < Greek spérma seed <sper-, base of speírein to sow]

sperm2

(spɜrm)

n.
spermaceti.
[1830–40; by shortening]

-sperm

a combining form meaning “one having seeds” of the kind specified by the initial element: gymnosperm.
[< Greek -spermos]

sperm

(spûrm)
1. In male animals, the reproductive cell whose nucleus is capable of fusing with the nucleus of an egg cell to form a new organism; a spermatozoon. A sperm has half as many chromosomes as the other cells of the body and moves to unite with the egg.
2. In plants, algae, and certain fungi, the reproductive cell whose nucleus is capable of fusing with the nucleus of a female reproductive cell to form a new organism. A sperm has half as many chromosomes as the other cells of the organism and moves to unite with the egg.

sperm

Male sex cells.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sperm - the male reproductive cellsperm - the male reproductive cell; the male gamete; "a sperm is mostly a nucleus surrounded by little other cellular material"
flagellum - a lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa)
come, seminal fluid, seed - the thick white fluid containing spermatozoa that is ejaculated by the male genital tract
gamete - a mature sexual reproductive cell having a single set of unpaired chromosomes
acrosome - a process at the anterior end of a sperm cell that produces enzymes to facilitate penetration of the egg
male reproductive system - the reproductive system of males

sperm

noun
1. spermatozoon, reproductive cell, male gamete Conception occurs when a single sperm fuses with an egg.
2. semen, seed (archaic or dialect), spermatozoa, scum (U.S. slang), come or cum (taboo), jism or jissom (taboo) the ejaculation of sperm

sperm

noun
The male fluid of fertilization:
Translations
خلِيَّة مَنويَّه مُخْصِبَهسائِل مَنَويمَنِيّ
spermiespermasemeno
sædsædcellesperm
sperma
spermasiemennestesiittiö
sperma
sperma
sæîisáîfruma
精子
정자
spermaspermatozoidas
spermaspermatozoīds
spermă
spermaspermia
sperma
ตัวอสุจิ
er suyuerkeklik tohumumenispermsperma
tinh trùng

sperm

[spɜːm]
A. N (Bio) → esperma m or f
B. CPD sperm bank Nbanco m de esperma
sperm count Nrecuento m de espermas
sperm whale Ncachalote m

sperm

[ˈspɜːrm]
n
(= cell) → spermatozoïde m
(= semen) → sperme m
modif [donor, donation, sample] → de sperme

sperm

nSamenfaden m, → Spermatozoon nt, → Spermium nt; (= fluid)Samenflüssigkeit f, → Sperma nt

sperm

:
sperm oil
nWalratöl nt
sperm whale
nPottwal m

sperm

[spɜːm] n (Bio) → sperma m

sperm

(spːm) plural sperms sperm noun
1. the fluid in a male animal etc that fertilizes the female egg.
2. one of the fertilizing cells in this fluid.

sperm

مَنِيّ spermie sperm Sperma σπέρμα esperma sperma sperme sperma sperma 精子 정자 sperma sperm sperma esperma сперма sperma ตัวอสุจิ sperm tinh trùng 精子

sperm

n. esperma, semen;
decreased ___ countconteo disminuido de ___;
___ countespermiograma
V.: semen.

sperm

n (individual spermatozoon) espermatozoide m; (semen) semen m, esperma m&f
References in classic literature ?
Some centuries ago, when the Sperm whale was almost wholly unknown in his own proper individuality, and when his oil was only accidentally obtained from the stranded fish; in those days spermaceti, it would seem, was popularly supposed to be derived from a creature identical with the one then known in England as the Greenland or Right Whale.
But Scoresby knew nothing and says nothing of the great sperm whale, compared with which the Greenland whale is almost unworthy mentioning.
As the type of the FOLIO I present the Sperm Whale; of the OCTAVO, the Grampus; of the DUODECIMO, the Porpoise.
Utter confusion exists among the historians of this animal (sperm whale), says Surgeon Beale, A.
Thus, the sperm whale and the humpbacked whale, each has a hump; but there the similitude ceases.
At any rate, the popular name for him does not sufficiently distinguish him, since the sperm whale also has a hump, though a smaller one.
By some fishermen his approach is regarded as premonitory of the advance of the great sperm whale.
But the next time you have a chance, watch him; and you will then see the great Sperm whale himself in miniature.
Assuming the blubber to be the skin of the whale; then, when this skin, as in the case of a very large Sperm Whale, will yield the bulk of one hundred barrels of oil; and, when it is considered that, in quantity, or rather weight, that oil, in its expressed state, is only three fourths, and not the entire substance of the coat; some idea may hence be had of the enormousness of that animated mass, a mere part of whose mere integument yields such a lake of liquid as that.
Theoretically, a possible reason for this defect may be attributed to the inability of Phospholipase C zeta (PLC[zeta]), a Sperm-borne Oocyte-activating Factor (SOAF), to penetrate through the sperm plasma membrane, resulting in a limited amount of PLC[zeta] available for oocyte activation (28,36).
In that sense, loss of sperm function can be mitigated by post-thaw swim-up or density gradient processing methods that selectively recover motile or structurally-normal spermatozoa (Terrell et al.).
Questions about how individual differences in chemoattractant production may influence sperm behavior within a species have been examined, but it has proven difficult to parse out whether the increase in fertilization success observed is due to differences in gametic compatibility, increased activity exhibited by the sperm to certain eggs, or a combination of both (Evans et al., 2012; Hussain et al., 2016).