| COTTONMOUTHS | • cottonmouths n. Plural of cottonmouth. • COTTONMOUTH n. a venomous semiaquatic snake of swamps in southern US. |
| LITHOTOMISTS | • lithotomists n. Plural of lithotomist. • LITHOTOMIST n. a surgeon who practises lithotomy. |
| LITHOTRITORS | • lithotritors n. Plural of lithotritor. • LITHOTRITOR n. a device that crushes stones in the bladder, also LITHONTRIPTOR, LITHOTRIPTER, LITHOTRIPTOR, LITHOTRITE. |
| ORTHODONTIST | • orthodontist n. An orthodontic dentist. • ORTHODONTIST n. one who practises orthodontics. |
| ORTHOPTERIST | • orthopterist n. An entomologist who specialises in orthopters. • ORTHOPTERIST n. a student of insects. |
| OSTEOPATHIST | • osteopathist n. An osteopath. • OSTEOPATHIST n. a practitioner of osteopathy, also OSTEOPATH. |
| 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. |
| PHOTOSETTING | • photosetting v. Present participle of photoset. • PHOTOSETTING n. composing (matter) by projecting film from which a printing plate is made. |
| PHOTOSTATING | • photostating v. Present participle of photostat. • PHOTOSTAT v. to make facsimiles by this means. |
| PHOTOSTATTED | • photostatted v. Simple past tense and past participle of photostat. • PHOTOSTAT v. to make facsimiles by this means. |
| PHOTOTYPESET | • phototypeset v. (Transitive) To typeset by a phototypesetting process. • PHOTOTYPESET v. to set (type matter) by phototypesetting. |
| PHYTOTOMISTS | • phytotomists n. Plural of phytotomist. • PHYTOTOMIST n. a student of phytotomy. |
| POTSHOTTINGS | • POTSHOTTING n. the act of taking a potshot. |