Definition & Meaning
- Sperm (noun): The male reproductive cell, produced in the testes of animals and humans, that fertilizes a female’s egg cell to create new life.
- Broader meaning: Any male gamete (in animals or plants).
- Origin: From Greek sperma meaning “seed.”
Pronunciation
- /spɜːrm/ (US & UK English)
- Rhymes with germ and term.
Grammatical Formation
- Countable/uncountable noun:
- Uncountable: “The doctor studied sperm under the microscope.”
- Countable (less common): “Human sperms are smaller than frog sperms.”
Plural form can be sperms, but in most contexts it is used as an uncountable noun.
Word Comparisons
- Semen vs. Sperm:
- Semen is the fluid that contains sperm cells along with other secretions.
- Sperm refers specifically to the reproductive cell itself.
- Egg vs. Sperm:
- Egg (ovum) is the female reproductive cell.
- Sperm is the male reproductive cell.
Changes in Meaning with Prepositions
- Sperm from: “Scientists collected sperm from whales for study.”
- Sperm in: “There was sperm in the laboratory sample.”
- Sperm of: “The sperm of mammals share certain features.”
Real-Life Examples
- “Doctors often analyze sperm to test fertility.”
- “Sperm whales are large marine mammals named for the spermaceti oil found in their heads.”
- “Human sperm cells have a tail called a flagellum to help them swim.”
Common Collocations
- sperm count (measurement of sperm in semen)
- sperm donor (a man who donates sperm for artificial insemination)
- sperm bank (a facility storing sperm samples)
- sperm cell (the microscopic reproductive cell)
- sperm quality / motility (ability of sperm to move effectively)
Idiomatic / Figurative Usage
- Rare, but occasionally used in humor, science fiction, or creative writing:
- “Brain sperm” (metaphorical, for creative ideas).
- “Sperm of the moment” (play on “spur of the moment”).
Such idioms are uncommon and usually humorous or informal.
Synonyms
seed, male gamete, reproductive cell, seminal cell
Antonyms
egg, ovum, female gamete
Related Terms
- Fertilization (when sperm meets egg)
- Zygote (the cell formed after sperm fertilizes the egg)
- Semen (fluid carrying sperm)
- Testes/Testicles (organs producing sperm)
Connection to Sexuality
Yes. Sperm is directly linked to human reproduction and sexuality. It is essential for conception and is therefore frequently discussed in medical, sexual health, fertility, and biological contexts.
Sample Sentences
- “The fertility clinic tested his sperm count.”
- “The whale is called a sperm whale because of the oily substance once mistaken for sperm.”
- “Without sperm, natural reproduction in animals would not be possible.”
- “He became a sperm donor to help couples have children.”
Sexopedia.co is an educational glossary of sexual and gender-related terms—helping you improve your English while deepening your understanding of identity, language, and self-expression.