| HOPLOLOGISTS | • hoplologists n. Plural of hoplologist. • HOPLOLOGIST n. a student of hoplology, the study of weapons. |
| HOROSCOPISTS | • horoscopists n. Plural of horoscopist. • HOROSCOPIST n. one who casts horoscopes, an astrologer. |
| MONOSTROPHES | • monostrophes n. Plural of monostrophe. • MONOSTROPHE n. a poem in which all the stanzas or strophes are written in the same metre. |
| OOPHORITISES | • OOPHORITIS n. inflammation of the ovaries. |
| OPHIOLOGISTS | • ophiologists n. Plural of ophiologist. • OPHIOLOGIST n. a student of ophiology. |
| OPISTHODOMOS | • opisthodomos n. (Greek architecture) A porch at the rear of a temple, set against the blank back wall of the cella. • OPISTHODOMOS n. (Greek) a portico or apartment at the back of an ancient Greek or Roman temple. |
| OPISTHOTONOS | • opisthotonos n. (Medicine) Sustained tetanic spasm in which the body is bent backwards and stiffened, as produced by various diseases. • OPISTHOTONOS n. extreme arching backwards of the spine and neck as a result of spasm of the muscles in that region, etc. |
| PHONOLOGISTS | • phonologists n. Plural of phonologist. • PHONOLOGIST n. a student of phonology, the branch of linguistics that deals with systems of sounds. |
| PHOTOFISSION | • photofission n. (Nuclear physics) Nuclear fission as the result of the absorption of a gamma ray or other high-energy photon. • photofission v. (Nuclear physics) To undergo, or cause to undergo, photofission. • PHOTOFISSION n. nuclear fission induced by gamma rays. |
| PHOTOIONISES | • PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE. |
| PHOTOMOSAICS | • photomosaics n. Plural of photomosaic. • PHOTOMOSAIC n. an image composed of many smaller photographs. |
| PHOTOSENSORS | • photosensors n. Plural of photosensor. • PHOTOSENSOR n. a detector that is sensitive to electromagnetic radiation. |
| PHOTOTONUSES | • PHOTOTONUS n. the sensitivity of a living organism to light. |
| PHYSOSTOMOUS | • physostomous adj. (Zoology) Having a duct to the air bladder. • physostomous adj. (Zoology) Relating to the Physostomi. • PHYSOSTOMOUS adj. of fishes, having a duct connecting the air bladder to part of the alimentary canal. |
| POSTWORKSHOP | • postworkshop adj. After a workshop (educational course or conference). • POSTWORKSHOP adj. taking place after a workshop. |
| TROPHOBIOSES | • trophobioses n. Plural of trophobiosis. • TROPHOBIOSIS n. exchange of nutriment in symbiotic relationship. |
| TROPHOBIOSIS | • trophobiosis n. (Zoology) A symbiotic association in which one organism obtains or provides food for another. • TROPHOBIOSIS n. exchange of nutriment in symbiotic relationship. |