| EXTORTIONIST | • extortionist n. Someone who extorts; an extortioner. • EXTORTIONIST n. one who practises extortion. |
| OPTOMETRISTS | • optometrists n. Plural of optometrist. • OPTOMETRIST n. an ophthalmic optician; a person qualified to practise optometry. |
| ORTHOPTERIST | • orthopterist n. An entomologist who specialises in orthopters. • ORTHOPTERIST n. a student of insects. |
| PHOTOMETRIST | • photometrist n. A specialist in photometry. • PHOTOMETRIST n. one who practises photometry, that branch of science which treats of the measurement of the intensity of light. |
| PHOTOSETTERS | • photosetters n. Plural of photosetter. • PHOTOSETTER n. an apparatus for photosetting. |
| POTENTIATORS | • potentiators n. Plural of potentiator. • POTENTIATOR n. one who potentiates. |
| PROTESTATION | • protestation n. A formal solemn objection or other declaration. • protestation n. (Law, historical) A declaration in common-law pleading, by which the party interposes an oblique allegation… • PROTESTATION n. an avowal or solemn declaration. |
| ROTTENSTONED | • rottenstoned v. Simple past tense and past participle of rottenstone. • ROTTENSTONE v. to polish with rottenstone. |
| ROTTENSTONES | • rottenstones n. Plural of rottenstone. • ROTTENSTONE v. to polish with rottenstone. |
| STROMATOLITE | • stromatolite n. (Geology) A laminated, columnar, rock-like structure constituting a large share of all fossils from… • STROMATOLITE n. a rounded, multilayered structure, found in rocks dating back at least 2800 million years, having present-day equivalents that result from the growth, under special conditions, of blue-green algae. |
| TERATOLOGIST | • teratologist n. (Teratology) A scientist specialising in teratology. • TERATOLOGIST n. a student of teratology. |
| TERATOMATOUS | • teratomatous adj. Relating to a teratoma. • TERATOMATOUS adj. of or like a teratoma. |
| TESTOSTERONE | • testosterone n. (Biochemistry, steroids) A steroid hormone that stimulates development of male secondary sexual characteristics… • testosterone n. (Figuratively) Manly behavior, often of an aggressive or foolishly reckless nature. • TESTOSTERONE n. the chief male sex hormone, a steroid secreted by the testes. |
| TORTUOSITIES | • tortuosities n. Plural of tortuosity. • TORTUOSITY n. the state of being tortuous. |
| TROPOSCATTER | • troposcatter n. Tropospheric scatter. • TROPOSCATTER n. the propagation of radio waves by using irregularities in the troposphere to scatter the signals beamed up by means of high-powered UHF transmitters and parabolic antennas. |