| DRAINPIPES | • drainpipes n. Plural of drainpipe. • drainpipes n. Synonym of drainpipe trousers. • drain␣pipes n. Plural of drain pipe. |
| EPIPELAGIC | • epipelagic adj. Of, pertaining to, or inhabiting the water from the surface of the sea down to 200 metres. • EPIPELAGIC adj. relating to the upper, sunlit layer of sea. |
| HAWSEPIPES | • hawsepipes n. Plural of hawsepipe. • hawse-pipes n. Plural of hawse-pipe. • hawse␣pipes n. Plural of hawse pipe. |
| MICROPIPET | • micropipet n. Alternative form of micropipette. • MICROPIPET n. a very fine pipet, also MICROPIPETTE. |
| PIPECLAYED | • pipeclayed v. Simple past tense and past participle of pipeclay. • PIPECLAY v. to whiten with pipeclay. |
| PIPEFISHES | • pipefishes n. Plural of pipefish. • PIPEFISH n. any of numerous fishes having a long slender armoured body and a tubular snout. |
| PIPEFITTER | • pipefitter n. An industrial tradesman who installs and maintains piping systems. • pipe␣fitter n. Alternative form of pipefitter. • PIPEFITTER n. one whose job is to fit pipes. |
| PIPELINING | • pipelining v. Present participle of pipeline. • PIPELINING n. the act of conveying by pipeline. |
| PIPERAZINE | • piperazine n. (Organic chemistry, pharmacology, uncountable) A saturated heterocyclic compound, C4H10N2, containing… • piperazine n. (Organic chemistry, countable) Any derivative of this compound. • PIPERAZINE n. a crystalline nitrogen compound used in medicine, insecticides etc. |
| PIPERIDINE | • piperidine n. (Organic chemistry) An alicyclic heterocycle, containing 5 carbon atoms and one nitrogen atom, formally… • PIPERIDINE n. an oily liquid alkaloid having a hot, peppery, ammoniacal odor. |
| PIPERONALS | • PIPERONAL n. a phenolic aldehyde of very pleasant odour, used as a perfume and in flavourings, etc. |
| PIPESTONES | • pipestones n. Plural of pipestone. • PIPESTONE n. a kind of clay slate, carved by the Indians into tobacco pipes. |
| PITCHPIPES | • pitchpipes n. Plural of pitchpipe. • pitch␣pipes n. Plural of pitch pipe. • PITCHPIPE n. a small pipe used to pitch the voice or tune strings. |
| SANDPIPERS | • sandpipers n. Plural of sandpiper. • SANDPIPER n. any of various smaller waders of the family Scolopacidae. |
| STANDPIPES | • standpipes n. Plural of standpipe. • STANDPIPE n. a pipe for supplying water. |
| STOVEPIPES | • stovepipes n. Plural of stovepipe. • stovepipes n. Synonym of stovepipe trousers. • STOVEPIPE n. a man's tall cylindrical (usually silk) hat. |
| WINCOPIPES | • wincopipes n. Plural of wincopipe. • WINCOPIPE n. (obsolete) a little red flower, probably the scarlet pimpernel. |