| HYPNOPOMPIC | • hypnopompic adj. Relating to the state of consciousness before becoming completely awake. • HYPNOPOMPIC adj. pertaining to the semiconscious state before waking. |
| HYPOPHOSPHITE | • hypophosphite n. (Chemistry) any salt of hypophosphorous acid. • HYPOPHOSPHITE n. a salt of hypophosphorous acid. |
| HYPOPHOSPHITES | • hypophosphites n. Plural of hypophosphite. • HYPOPHOSPHITE n. a salt of hypophosphorous acid. |
| HYPOPHOSPHORIC | • hypophosphoric adj. Of or pertaining to hypophosphoric acid or its derivatives. • HYPOPHOSPHORIC adj. as in hypophosphoric acid, a tetrabasic acid produced by the slow oxidation of phosphorus in moist ai. |
| JOYPOPPING | • joypopping v. Present participle of joypop. • JOYPOP v. to use habit-forming drugs occasionally. |
| POLYPHOSPHORIC | • polyphosphoric adj. (Chemistry) Used to describe polymeric phosphoric acids and their derivatives. • POLYPHOSPHORIC adj. as in polyphosphoric acid, any oxyacid of pentavalent phosphorus. |
| 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. |
| PORPHYROPSINS | • porphyropsins n. Plural of porphyropsin. • PORPHYROPSIN n. a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin. |
| POSTAPOCALYPTIC | • postapocalyptic adj. Occurring after an apocalypse or catastrophic event. • post-apocalyptic adj. After the apocalypse. • post-apocalyptic adj. Of or pertaining to a fiction genre dealing with the collapse of society. |
| PROTOPORPHYRIN | • protoporphyrin n. (Biochemistry) Any porphyrin that lacks a central metal ion. • PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin. |
| PROTOPORPHYRINS | • protoporphyrins n. Plural of protoporphyrin. • PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin. |
| PYROPHOSPHORIC | • pyrophosphoric adj. Of, or relating to pyrophosphoric acid or its derivatives. • PYROPHOSPHORIC adj. as in pyrophosphoric acid, a type of acid. |