| ORTHOPTERISTS | • orthopterists n. Plural of orthopterist. • ORTHOPTERIST n. a student of insects. |
| COUNTERTHRUSTS | • counterthrusts n. Plural of counterthrust. • COUNTERTHRUST n. a thrust to counter another thrust. |
| OSTEOARTHRITIS | • osteoarthritis n. (Pathology) A form of arthritis, affecting mainly older people, caused by chronic degeneration of the… • OSTEOARTHRITIS n. arthritis marked by degeneration of the cartilage and bone of joints. |
| STRATIGRAPHIST | • stratigraphist n. (Dated) A stratigrapher. • STRATIGRAPHIST n. a practitioner of stratigraphy, also STRATIGRAPHER. |
| TRICHOPTERISTS | • TRICHOPTERIST n. someone who studies the caddis flies. |
| TRUSTWORTHIEST | • trustworthiest adj. Superlative form of trustworthy: most trustworthy. • TRUSTWORTHY adj. worthy of confidence. |
| ULTRARIGHTISTS | • ultrarightists n. Plural of ultrarightist. • ULTRARIGHTIST n. an extreme conservative. |
| HORTICULTURISTS | • horticulturists n. Plural of horticulturist. • HORTICULTURIST n. one who practises horticulture. |
| OSTEOARTHRITICS | • osteoarthritics n. Plural of osteoarthritic. • OSTEOARTHRITIC n. one suffering from osteoarthritis. |
| PHOTOTRANSISTOR | • phototransistor n. (Electronics) Any semiconductor device whose electrical characteristics are light-sensitive. • PHOTOTRANSISTOR n. a junction transistor, whose base signal is generated by illumination of the base. |
| STRATIGRAPHISTS | • stratigraphists n. Plural of stratigraphist. • STRATIGRAPHIST n. a practitioner of stratigraphy, also STRATIGRAPHER. |
| STREPTOTHRICINS | • streptothricins n. Plural of streptothricin. • STREPTOTHRICIN n. any of a group of related basic antibiotics produced by a streptomyces and active esp. against bacteria. |
| TETARTOHEDRISMS | • tetartohedrisms n. Plural of tetartohedrism. • TETARTOHEDRISM n. the state of being tetartohedral, having one fourth the number of planes required by complete symmetry. |
| TRAINSPOTTERISH | • trainspotterish adj. (Informal) Like a trainspotter; obsessively nerdy. • TRAINSPOTTERISH adj. obsessed with trivial details, esp. of a subject generally considered uninteresting. |
| TRUSTWORTHINESS | • trustworthiness n. The state or quality of being trustworthy or reliable. • TRUSTWORTHINESS n. the state of being trustworthy. |