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• sperm
  sperm

  noun

  semen.
• sperm-
  sperm-

  variant of spermo- before a vowel.
• -sperm
  -sperm

  a combining form with the meaning “one having seeds” of the kind specified by the initial element.

sperm

¹ American  

[spurm] / spɜrm /

noun

• sperm,
  plural
• sperms
  plural

1. semen.

2. a male reproductive cell; spermatozoon.

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sperm ² American  

[spurm] / spɜrm /

noun

1. spermaceti.

2. sperm whale.

3. sperm oil.

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sperm- ³ American  

1. variant of spermo- before a vowel.

   spermine.

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-sperm ⁴ American  

1. a combining form with the meaning “one having seeds” of the kind specified by the initial element.

   gymnosperm.

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sperm ¹ British  

/ spɜːm /

noun

1. short for sperm whale spermaceti sperm oil

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-sperm ² British  

combining form

1. (in botany) a seed

   gymnosperm

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sperm ³ British  

/ spɜːm /

noun

1. another name for semen

2. a male reproductive cell; male gamete

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sperm Scientific  

/ spûrm /

1. The smaller, usually motile male reproductive cell of most organisms that reproduce sexually. Sperm cells are haploid (they have half the number of chromosomes as the other cells in the organism's body). Sperm often have at least one flagellum. During fertilization, the nucleus of a sperm fuses with the nucleus of the much larger egg cell (the female reproductive cell) to form a new organism. In male animals, sperm are normally produced by the testes in extremely large numbers in order to increase the chances of fertilizing an egg. Motile sperm cells produced by some multicellular protist groups (such as the algae), the bryophyte plants, and the seedless vascular plants, require water to swim to the egg cell. In gymnosperms and angiosperms, sperm do not need water for mobility but are carried to the female reproductive organs in the pollen grain. In the cycads and the gingko (both gymnosperms), the sperm are motile and propel themselves down the pollen tube to reach the egg cell. In the conifers and angiosperms, the sperm are not themselves motile but are conveyed to the ovule by the growing pollen tube.

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sperm Cultural  

1. The male sex cell, typically consisting of a head, midpiece, and tail. (See fertilization.)

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Usage

What does sperm- mean? Sperm- is a combining form used like a prefix representing “sperm.” Sperm are the reproductive cells contained in semen. Sperm- means "sperm" both literally and figuratively, as in "germ" or "seed." It is occasionally used in scientific terms, especially in biology. Sperm- comes from the Greek spérma, meaning “seed.”What are variants of sperm-?Sperm- is a variant of spermo-, which loses its -o- when combined with words or word elements beginning with vowels. The forms spermi- and spermato- are also combining forms from Greek spérma that are variously used to mean "sperm" or "seed."Related combining forms used as suffixes include -sperm, -spermal, -spermic, and -spermous. Want to learn more? Check out our Words That Use entries for each of these seven forms.

Closer Look

The human sperm cell is divided into a head that contains the nucleus, a mid-section that contains mitochondria to provide energy for the sperm, and a flagellum that allows the sperm to move. When fertilization occurs, the nucleus and other contents from the sperm cells are drawn into the cytoplasm of the egg, but the mitochondria in the sperm are destroyed and do not survive in the zygote. Since mitochondria contain their own DNA (thought to be a relic from an existence as separate symbiotic organisms), all of the mitochrondrial DNA in humans is thus inherited from the female. The semen produced by the male reproductive tract as a medium for sperm typically contains over 100 million sperm cells, all of which have but one purpose: to fertilize the single available egg.

Discover More

Sperm are much smaller than the ova they fertilize.

Other Word Forms

Derived Forms

• -spermous
  combining form

Inflected Forms

Nouns

• sperm
  plural
• sperms
  plural

Etymology

Origin of sperm¹

1350–1400; Middle English sperme < Late Latin sperma < Greek spérma seed, equivalent to sper- (base of speírein to sow seeds) + -ma noun suffix of result

Origin of sperm²

First recorded in 1830–40; by shortening

Origin of -sperm⁴

< Greek -spermos; see -spermous

Example Sentences

See Examples For:

sperm sperm- sperms

Now, after 13 years of uncertainty, Rachel and Jonah's DNA tests indicate that he is her biological son, but that Ditto was not the sperm donor.

From BBC ● Aug. 18, 2026

The BBC has also now learnt that the world's largest sperm bank, Cryos International, has blacklisted Dogus clinic since 2016.

From BBC ● Aug. 18, 2026

She says she first became concerned that Ditto was not the donor when patient co-ordinators, including Hodson, repeatedly refused to send her a medical report confirming his sperm had been used.

From BBC ● Aug. 18, 2026

That is despite Dogus having advertised its relationship with the sperm bank as a key selling point for many years.

From BBC ● Aug. 18, 2026

In 1694, Nicolaas Hartsoeker, the Dutch physicist and microscopist, conjured a picture of such a minibeing, its enlarged head twisted in fetal position and curled into the head of a sperm.

From "The Gene" by Siddhartha Mukherjee

Now, the theory has always been that the contact of the sperm- and germ-cells causes the development and fertilization of the latter.

From The Nests and Eggs of Indian Birds, Volume 1 by Allan Octavian Hume

They identified these sperms by measuring how much calcium they absorbed.

From Science Daily ● Mar. 5, 2024

Using the method, the team focused on sperms with defective capacitation, a process through which sperms become capable of fertilizing an egg.

From Science Daily ● Mar. 5, 2024

“If we want to go international and help women and couples in different parts of the world, we need non-Danish sperm, sperms of all colours,” says Schou.

From Newsweek ● Mar. 13, 2015

The history of endocrinology can be traced back to Dr.Brown-Séquard injecting himself with dog sperms to study its effect on his vitality and vigor.

From Scientific American ● Jun. 14, 2011

These sperms are so small that they are not visible to the naked eye, but they are readily seen by the use of a microscope.

From Sane Sex Life and Sane Sex Living Some Things That All Sane People Ought to Know About Sex Nature and Sex Functioning; Its Place in the Economy of Life, Its Proper Training and Righteous Exercise by H. W. (Harland William) Long

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