a technique that separates sperm from the seminal fluid, used especially for isolating active sperm for artificial insemination.
noun 1. a large, square-snouted whale, Physeter catodon, valued for its oil and spermaceti: now reduced in number and rare in some areas. noun 1. a large toothed whale, Physeter catodon, having a square-shaped head and hunted for sperm oil, spermaceti, and ambergris: family Physeteridae Also called cachalot
- Sperrin mountains
/ˈspɛrɪn/ noun 1. a mountain range in NW Northern Ireland
noun 1. Elmer Ambrose, 1860–1930, U.S. inventor and manufacturer. 2. Roger Wolcott, 1913–94, U.S. neurobiologist: Nobel prize 1981. Sperry Sper·ry (spěr’ē), Roger Wolcott. Born 1913. American neurobiologist. He shared a 1981 Nobel Prize for studies of the organization and functioning of the brain. Sperry (spěr’ē) American neurobiologist who pioneered the behavioral investigation of “split-brain” animals […]
noun 1. a mineral, platinum arsenide, PtAs 2 , occurring in minute tin-white crystals, usually cubes: a minor ore of platinum. noun 1. a white metallic mineral consisting of platinum arsenide in cubic crystalline form. Formula: PtAs2