Perforating vein
perforating vein n.
Any of the veins that accompany the perforating arteries, drain the lateral vastus and the hamstring muscles, and terminate in the deep femoral vein.
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- Perforating wound
perforating wound n. A wound having an entrance and an exit.
- Perforation
[pur-fuh-rey-shuh n] /ˌpɜr fəˈreɪ ʃən/ noun 1. a hole, or one of a series of holes, bored or punched through something, as those between individual postage stamps of a sheet to facilitate separation. 2. a hole made or passing through a thing. 3. the act of . 4. the condition or state of being . […]
- Perforation-gauge
noun, Philately. 1. a marked ruler used to measure the number of perforations per unit length along the borders of a stamp. noun 1. a graduated scale for measuring perforations and roulettes of postage stamps
- Perforce
[per-fawrs, -fohrs] /pərˈfɔrs, -ˈfoʊrs/ adverb 1. of necessity; necessarily; by force of circumstance: The story must perforce be true. /pəˈfɔːs/ adverb 1. by necessity; unavoidably adv. early 14c., par force, from Old French par force (12c.), literally “by force” (see force). With Latin per substituted 17c. for French cognate par.
- Perforin
[pur-fer-in] /ˈpɜr fər ɪn/ noun, Biochemistry. 1. a protein produced by killer cells of the immune system that causes disintegration of targeted cells by forming pores in their membranes.