[ma-see-ter] /mæˈsi tər/
a short, thick, masticatory muscle, the action of which assists in closing the jaws by raising the mandible or lower jaw.
(anatomy) a muscle of the cheek used in moving the jaw, esp in chewing
- Masseteric nerve
masseteric nerve n. A muscular branch of the mandibular nerve passing to the medial surface of the masseter muscle, which it supplies.
[muh-sur; French ma-sœr] /məˈsɜr; French maˈsœr/ noun, plural masseurs [muh-surz; French ma-sœr] /məˈsɜrz; French maˈsœr/ (Show IPA) 1. a man who provides as a profession or occupation. /mæˈsɜː/ noun 1. a man who gives massages, esp as a profession n. “man who works giving massages,” 1876, from French masseur, masc. agent noun from masser (see […]
[muh-soos, -sooz; French ma-sœz] /məˈsus, -ˈsuz; French maˈsœz/ 1. a woman who provides massage as a profession or occupation. /mæˈsɜːz/ noun 1. a woman who gives massages, esp as a profession n. “woman who works giving massages,” 1876, from French masseuse, fem. agent noun from masser (see massage).
- Mass extinction
mass extinction The extinction of a large number of species within a relatively short period of geological time, thought to be due to factors such as a catastrophic global event or widespread environmental change that occurs too rapidly for most species to adapt. At least five mass extinctions have been identified in the fossil record, […]