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spermato-
spermato- (ˈspɜːmətəʊ) repr. Gr. σπερµατο-, combining form of the stem of σπέρµα sperm n., employed in a large number of terms (chiefly of recent origin) relating to the reproductive organs or activities of animals and plants. Some of these are employed only in L. forms, as spermatocystidium, -cysti...
Oxford English Dictionary
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spermo-
spermo- irregular comb. form (for spermato-) of L. sperma or Gr. σπέρµα sperm n.1, used in various terms of Phys., Zool., and Bot. The older and more important of these are given below; many others, as spermocarp, spermo-centre, spermo-coccus, spermo-cyte, spermo-duct, spermo-lith, spermo-nucleus, e...
Oxford English Dictionary
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sperma-
sperma- combining form of prec.: see spermaduct, etc., and cf. spermato-, spermo-.
Oxford English Dictionary
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spermatozoon
‖ spermatozoon (-ˈzəʊɒn) Pl. -zoa. [f. spermato- + Gr. ζῷον living thing, animal.] One of the numerous minute and active filaments present in the seminal fluid, by which the fecundation of the ovum is effected.1836–9 Todd's Cycl. Anat. II. 113/1 The Spermatozoa have been detected..in the different c...
Oxford English Dictionary
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spermatophore
ˈspermatophore [f. spermato- + -phore.] 1. Biol. In certain of the lower forms of animal life, a structure containing a compact mass of spermatozoa.1847–9 Todd's Cycl. Anat. IV. i. 485/1 These fibres in the Cephalopods are..surrounded..by peculiar sack-like enclosures or Spermatophores. 1870 Rollest...
Oxford English Dictionary
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spermatoon
spermaˈtoon Biol. Pl. -ˈtoa. [f. spermato- + Gr. {wlenisisub}όν egg.] A spermatid.1875 Brande & Cox Dict. Sci., etc. III. 530/1 Sometimes the sperm-cell contains a single spermatoon, sometimes several spermatoa.
Oxford English Dictionary
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spermaticide
spermaticide Now rare. (spɜːˈmætɪsaɪd) [f. spermato-: see -cide.] = spermicide. Hence sperˈmaticidal a. = spermicidal a.1923 M. C. Stopes Contraception v. 104 Of all the chemical substances used as spermaticides, undoubtedly quinine is in the most general use. 1931 Spermaticide, spermaticidal [see s...
Oxford English Dictionary
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spermicide
spermicide (ˈspɜːmɪsaɪd) [f. spermi- + -cide.] Any substance which kills spermatozoa, esp. one used as a contraceptive. So spermiˈcidal a. Cf. spermacide, spermaticide, and spermatocide s.v. spermato-.1929 Jrnl. Hygiene XXIX. 323 The spermicidal powers of the various chemical contraceptives sold to ...
Oxford English Dictionary
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spermatid
ˈspermatid Biol. Also -ide. [f. L. spermat-, stem of sperma sperm + -id.] A seminal cell which develops into a spermatozoon; spec. one that is formed by the meiotic division of a secondary spermatocyte and develops into a spermatozoon without dividing again.1889 Geddes & Thomson Evol. Sex ix. 113 Th...
Oxford English Dictionary
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