| PANSPERMATISM | • panspermatism n. (Historical) The obsolete theory that germs are omnipresent. • PANSPERMATISM n. the theory that life could be diffused through the universe by means of germs carried by meteorites, also PANSPERMIA, PANSPERMISM, PANSPERMY. |
| PANSPERMATIST | • panspermatist n. Alternative form of panspermist. • PANSPERMATIST n. a believer in panspermia. |
| 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. |