| MONOPHTHONGS | • monophthongs n. Plural of monophthong. • MONOPHTHONG n. two written vowels representing a single sound, e.g. 'oo', 'oa'. |
| MONOSTROPHES | • monostrophes n. Plural of monostrophe. • MONOSTROPHE n. a poem in which all the stanzas or strophes are written in the same metre. |
| MONOSTROPHIC | • monostrophic adj. Of or pertaining to monostrophe. • monostrophic n. A monostrophe. • MONOSTROPHIC adj. having the same strophic or stanzaic structure throughout. |
| ODONTOGRAPHS | • odontographs n. Plural of odontograph. • ODONTOGRAPH n. an instrument for obtaining curves for gear-teeth. |
| ODONTOPHORES | • odontophores n. Plural of odontophore. • ODONTOPHORE n. the rasping apparatus in molluscs. |
| OPISTHOTONIC | • opisthotonic adj. Relating to opisthotonus. • OPISTHOTONIC adj. of or like opisthotonos, extreme arching backwards of the spine and neck as a result of spasm of the muscles in that region. |
| 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. |
| ORNITHOSCOPY | • ornithoscopy n. Birdwatching. • ORNITHOSCOPY n. bird watching. |
| 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. |
| PHOTOIONISED | • photoionised adj. Alternative spelling of photoionized. • PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE. |
| PHOTOIONISES | • PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE. |
| PHOTOIONIZES | • photoionizes v. Third-person singular simple present indicative form of photoionize. • PHOTOIONIZE v. to ionize by electromagnetic radiation, also PHOTOIONISE. |
| PHOTOPHONIES | • PHOTOPHONY n. the art or practice of using the photophone. |
| 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. |