| ALLOTROPISMS | • allotropisms n. Plural of allotropism. • ALLOTROPISM n. the state of an element existing in more than one form. |
| ALPROSTADILS | Sorry, definition not available. |
| CHLOROPLASTS | • chloroplasts n. Plural of chloroplast. • CHLOROPLAST n. a plastid that contains chlorophyll and is the site of photosynthesis. |
| HOSPITALLERS | • hospitallers n. Plural of hospitaller. • HOSPITALLER n. a member of a charitable brotherhood for the care of the sick in hospitals, also HOSPITALER. |
| PARALLELISTS | • PARALLELIST n. a person who draws a parallel or comparison; a believer in psychophysical parallelism. |
| PASTEURELLAS | • PASTEURELLA n. a small rodlike bacterium of the genus Pasteurella. |
| PASTOURELLES | • pastourelles n. Plural of pastourelle. • PASTOURELLE n. (French) a medieval poem between a knight and a shepherdess. |
| PIPISTRELLES | • pipistrelles n. Plural of pipistrelle. • PIPISTRELLE n. a small reddish-brown bat, also PIPISTREL. |
| POLYCRYSTALS | • polycrystals n. Plural of polycrystal. • POLYCRYSTAL n. an object composed of several or many variously orientated crystals. |
| PORTCULLISES | • portcullises n. Plural of portcullis. • portcullises v. Third-person singular simple present indicative form of portcullis. • PORTCULLIS n. a grating of iron or of timbers pointed with iron, hung over the gateway of a fortress, to be let down to prevent the entrance of an enemy. |
| POSTILLATORS | • postillators n. Plural of postillator. • POSTILLATOR n. one who postillates, explains by marginal notes. |
| PROFITLESSLY | • profitlessly adv. In a profitless manner. • PROFITLESS adv. without profit. |
| PROTHALLUSES | • prothalluses n. Plural of prothallus. • PROTHALLUS n. the free-living gametophyte of a fern or other vascular cryptogam, also PROTHALLIUM. |
| SPIRITLESSLY | • spiritlessly adv. In a spiritless manner. • SPIRITLESS adv. lacking animation or courage. |