piriform pir·i·form (pĭr’ə-fôrm’, pī’rə-)
Shaped like a pear.
Public Interest Research Group
- Piriform muscle
piriform muscle n. A muscle with origin from the margins of the pelvic sacral foramina and the sciatic notch of the ilium, with insertion into the great trochanter, with nerve supply from the sciatic plexus, and whose action rotates the thigh laterally.
/ˈpaɪpˌfɪtɪŋ/ noun 1. 2. the threaded gland nuts, unions, adaptors, etc, used for joining pipes
noun 1. a person who installs and repairs pipe systems.
[pahyp-fish] /ˈpaɪpˌfɪʃ/ noun, plural (especially collectively) pipefish (especially referring to two or more kinds or species) pipefishes. 1. any elongated, marine and sometimes freshwater species of the family Syngnathidae, having a tubular snout and covered with bony plates. /ˈpaɪpˌfɪʃ/ noun (pl) -fish, -fishes 1. any of various teleost fishes of the genera Nerophis, Syngnathus, etc, […]