| TOOTHWORTS | • toothworts n. Plural of toothwort. • TOOTHWORT n. a plant whose roots are fancied to resemble teeth, as certain plants of the genus Lathraea, and various species of Dentaria. |
| COTTONMOUTHS | • cottonmouths n. Plural of cottonmouth. • COTTONMOUTH n. a venomous semiaquatic snake of swamps in southern US. |
| ORTHODONTIST | • orthodontist n. An orthodontic dentist. • ORTHODONTIST n. one who practises orthodontics. |
| ORTHODONTISTS | • orthodontists n. Plural of orthodontist. • ORTHODONTIST n. one who practises orthodontics. |
| PHOTODETECTORS | • photodetectors n. Plural of photodetector. • PHOTODETECTOR n. any of various devices for detecting and measuring the intensity of radiant energy through photoelectric action. |
| PROSTHODONTIST | • prosthodontist n. One who specializes in prosthodontics. • PROSTHODONTIST n. a specialist in prosthodontics. |
| TETRACHOTOMOUS | • tetrachotomous adj. Dividing or branching into four equal pieces. • TETRACHOTOMOUS adj. divided into fours. |
| CYTOPATHOLOGIST | • cytopathologist n. A scientist whose speciality is cytopathology. |
| GNATHOSTOMATOUS | • gnathostomatous adj. Relating to, or characteristic of members of the Gnathostomata. • GNATHOSTOMATOUS adj. of or like a gnathostome. |
| PHOTOAUTOTROPHS | • photoautotrophs n. Plural of photoautotroph. • PHOTOAUTOTROPH n. an organism capable of synthesizing its own food from inorganic substances using light as an energy source. |
| PHOTOTOXICITIES | • phototoxicities n. Plural of phototoxicity. • PHOTOTOXICITY n. the state of being phototoxic. |
| 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. |
| PROSTHODONTISTS | • prosthodontists n. Plural of prosthodontist. • PROSTHODONTIST n. a specialist in prosthodontics. |
| PROTHONOTARIATS | • prothonotariats n. Plural of prothonotariat. • PROTHONOTARIAT n. the college constituted by the twelve apostolical prothonotaries (bishops and senior members of the curia) in Rome, also PROTONOTARIAT. |