| APOLIPOPROTEINS | • apolipoproteins n. Plural of apolipoprotein. • APOLIPOPROTEIN n. a protein that combines with a lipid to form a lipoprotein.
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| APPROPRIATIONS | • appropriations n. Plural of appropriation. • APPROPRIATION n. an act or instance of appropriating.
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| PHOSPHOPROTEIN | • phosphoprotein n. (Biochemistry) any protein containing bound phosphate or complexed with a phospholipid. • PHOSPHOPROTEIN n. any of various proteins, such as casein, that contain combined phosphoric acid.
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| PHOSPHOPROTEINS | • phosphoproteins n. Plural of phosphoprotein. • PHOSPHOPROTEIN n. any of various proteins, such as casein, that contain combined phosphoric acid.
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| PHOTOSHOPPING | • photoshopping v. Present participle of photoshop. • PHOTOSHOP v. to manipulate a digital image using editing software.
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| POLYPROPENES | • polypropenes n. Plural of polypropene. • POLYPROPENE n. any of various thermoplastic plastics or fibers that are polymers of propylene, also POLYPROPYLENE.
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| POLYPROPYLENES | • polypropylenes n. Plural of polypropylene. • POLYPROPYLENE n. any of various thermoplastic plastics or fibers that are polymers of propylene, also POLYPROPENE.
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| PORPHYROPSIN | • porphyropsin n. Any of a group of purple carotenoid pigments, similar to rhodopsin, in the retinas of some fish. • PORPHYROPSIN n. a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin.
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| PORPHYROPSINS | • porphyropsins n. Plural of porphyropsin. • PORPHYROPSIN n. a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin.
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| PRESUPPOSITION | • presupposition n. An assumption made beforehand; a preliminary conjecture or speculation. • presupposition n. The act of presupposing.
 • presupposition n. (Linguistics) An assumption or belief implicit in an utterance or other use of language.
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| PRESUPPOSITIONS | • presuppositions n. Plural of presupposition. • PRESUPPOSITION n. a preliminary supposition.
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| PROPERISPOMENA | • properispomena n. Plural of properispomenon. • PROPERISPOMENON n. a word with the circumflex accent on the penultimate syllable.
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| PROPERISPOMENON | • properispomenon adj. (Linguistics, of a word) In Greek grammar, having a circumflex accent on the penultimate syllable. • properispomenon n. (Linguistics) A word having such an accent.
 • PROPERISPOMENON n. a word with the circumflex accent on the penultimate syllable.
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| PROPOXYPHENES | • propoxyphenes n. Plural of propoxyphene. • PROPOXYPHENE n. a narcotic analgesic structurally related to methadone but less addicting.
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| PROPRIOCEPTIONS | • proprioceptions n. Plural of proprioception. • PROPRIOCEPTION n. the sense of muscular position.
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| PROTOPORPHYRINS | • protoporphyrins n. Plural of protoporphyrin. • PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin.
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