spermatid
— Noun
– English
～ an immature gamete produced by a spermatocyte; develops into a spermatozoon
spermatocele
— Noun
– English
～ a swelling on the epididymis or the testis; usually contains spermatozoa
spermatocide
— Noun
– English
～ a contraceptive agent that kills spermatozoa
spermatocyte
— Noun
– English
～ a male gametocyte that develops into four spermatids
spermatogenesis
— Noun
– English
～ development of spermatozoa
Spermatophyta
— Noun
– English
～ seed plants; comprises the Angiospermae (or Magnoliophyta) and Gymnospermae (or Gymnospermophyta); in some classification systems Spermatophyta is coordinate with Pteridophyta (spore producing plants having vascular tissue and roots) and Bryophyta (spore producing plants lacking vascular tissue and roots)
spermatophyte
— Noun
– English
～ plant that reproduces by means of seeds not spores
spermatozoan
— Noun
– English
～ the male reproductive cell; the male gamete; "a sperm is mostly a nucleus surrounded by little other cellular material"
spermatozoid
— Noun
– English
～ a motile male gamete of a plant such as an alga or fern or gymnosperm
spermatozoon
— Noun
– English
～ the male reproductive cell; the male gamete; "a sperm is mostly a nucleus surrounded by little other cellular material"
spermicide
— Noun
– English
～ a contraceptive agent that kills spermatozoa
spermophile
— Noun
– English
～ any of various terrestrial burrowing rodents of Old and New Worlds; often destroy crops
Spermophilus
— Noun
– English
～ typical ground squirrels
sperry
— Noun
– English
～ United States engineer and inventor of the gyrocompass (1860-1930)