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There are 14 thirteen-letter words beginning with SPERM

SPERMATICALLY• SPERMATICAL adv. pertaining to sperm, also SPERMATIC, SPERMIC, SPERMOUS.
SPERMATOBLAST• spermatoblast n. (Dated) A spermatocyte.
• SPERMATOBLAST n. a sperm-producing cell.
SPERMATOCELES• spermatoceles n. Plural of spermatocele.
• SPERMATOCELE n. a cystic swelling of the testicle arising from the epididymis and containing sperm.
SPERMATOCIDAL• spermatocidal adj. Synonym of spermicidal.
• SPERMATOCIDAL adj. of or like a spermatocide, a substance that kills sperm.
SPERMATOCIDES• spermatocides n. Plural of spermatocide.
• SPERMATOCIDE n. a substance that kills sperm.
SPERMATOCYTES• spermatocytes n. Plural of spermatocyte.
• SPERMATOCYTE n. a cell producing spermatozoa.
SPERMATOGENIC• spermatogenic adj. Of or relating to spermatogenesis.
• SPERMATOGENIC adj. relating to spermatogenesis, the formation of spermatozoa, also SPERMATOGENETIC, SPERMATOGENOUS.
SPERMATOGONIA• spermatogonia n. Plural of spermatogonium.
• SPERMATOGONIUM n. a primitive male germ cell.
SPERMATOPHORE• spermatophore n. (Biology) A spermospore.
• spermatophore n. (Zoology) A capsule or pocket enclosing a number of spermatozoa, found in many annelids, brachiopods…
• SPERMATOPHORE n. a case enclosing the spermatozoa of certain crustaceans, molluscs and amphibians.
SPERMATOPHYTE• spermatophyte n. (Botany) Any plant that bears seeds rather than spores.
• SPERMATOPHYTE n. a seed plant.
SPERMATORRHEA• spermatorrhea n. Alternative form of spermatorrhoea.
• SPERMATORRHEA n. involuntary seminal discharge without orgasm, also SPERMATORRHOEA.
SPERMATOTHECA• spermatotheca n. Synonym of spermatheca.
• SPERMATOTHECA n. a receptacle for storing sperm.
SPERMATOZOANS• spermatozoans n. Plural of spermatozoan.
• SPERMATOZOAN n. a male sex cell, also SPERMATOZOON.
SPERMATOZOIDS• spermatozoids n. Plural of spermatozoid.
• SPERMATOZOID n. a motile male gamete of a plant usually produced in an antheridium.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 39 words
  • Scrabble in French: 8 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 12 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 21 words


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