[pi-per-uh-nal, pahy-, pip-er-uh-] /pɪˈpɛr əˌnæl, paɪ-, ˈpɪp ər ə-/
a white, crystalline, water-insoluble aldehyde, C 8 H 6 O 3 , which darkens on exposure to light: used chiefly in perfumery and organic synthesis.
a white fragrant aldehyde used in flavourings, perfumery, and suntan lotions. Formula: C8H6O3 Also called heliotropin
[pi-per-uh-nl, pahy-, pip-er-uh-nil] /pɪˈpɛr ə nl, paɪ-, ˈpɪp ər ə nɪl/ noun, Chemistry. 1. a light-brown liquid, C 1 9 H 3 0 O 5 , used chiefly as a synergist in certain insecticides.
[pahyp] /paɪp/ noun 1. a hollow cylinder of metal, wood, or other material, used for the conveyance of water, gas, steam, petroleum, etc. 2. a tube of wood, clay, hard rubber, or other material, with a small bowl at one end, used for smoking tobacco, opium, etc. 3. a quantity, as of tobacco, that fills […]
noun 1. any of several nonvenomous, burrowing snakes of the genus Cylindrophis, of southeastern Asia and the Malay Archipelago, having an evenly cylindrical body.
- Pipes of pan
plural noun 1. another term for panpipes
- Pipe someone off
verb phrase To blacklist someone [1940s+ Nautical; fr the nautical practice of blowing the boatswain’s pipe to welcome someone aboard or usher someone off a ship]