| COSTOTOMIES | • COSTOTOMY n. surgical incision into a rib. |
| EROTOLOGIST | • erotologist n. One who studies erotology. • EROTOLOGIST n. a student of erotology. |
| FOOTSTOOLED | • footstooled adj. Supplied with a footstool. • FOOTSTOOLED adv. with one's feet on a footstool. |
| GNOTOBIOTES | • gnotobiotes n. Plural of gnotobiote. • GNOTOBIOTE n. a germfree animal. |
| MOTORBOATED | • motorboated v. Simple past tense and past participle of motorboat. • MOTORBOAT v. to travel by motorboat. |
| MOTORBOATER | • motorboater n. Someone who pilots a motorboat. • MOTORBOATER n. one who drives a motorboat. |
| OCTOTHORPES | • octothorpes n. Plural of octothorpe. |
| ODONTOCETES | • odontocetes n. Plural of odontocete. • ODONTOCETE n. a subdivision of Cetacea, including the sperm whale, dolphins, etc.; the toothed whales. |
| ODONTOLITES | • odontolites n. Plural of odontolite. • ODONTOLITE n. a fossil bone or tooth coloured blue with phosphate of iron, aka bone-turquoise. |
| ORTHOBORATE | • orthoborate n. (Inorganic chemistry) Any anion derived from orthoboric acid; any salt containing this anion. • ORTHOBORATE n. a salt of orthoboric acid. |
| ORTHOPTERON | • orthopteron n. Alternative form of orthopteran. • ORTHOPTERON n. any member of the Orthoptera, an order of mandibulate insects, also ORTHOPTERAN. |
| OSTEOLOGIST | • osteologist n. A scientist or physician whose speciality is osteology. • OSTEOLOGIST n. one who practises osteology. |
| OSTEOTOMIES | • osteotomies n. Plural of osteotomy. • OSTEOTOMY n. the dissection or anatomy of bones. |
| PHOTOTROPES | • PHOTOTROPE n. a substance exhibiting phototropism, movement directed by light. |
| POTAMOGETON | • potamogeton n. (Botany) Any of the plants of the genus Potamogeton. • Potamogeton prop.n. A taxonomic genus within the family Potamogetonaceae – pondweeds. • POTAMOGETON n. a plant of the pondweed genus of water plants, with floating and submerged leaves. |
| PROTOSTOMES | • protostomes n. Plural of protostome. • PROTOSTOME n. a major group of bilateral metazoan animals, that includes mollusks and annelids. |
| RONDOLETTOS | • rondolettos n. Plural of rondoletto. • RONDOLETTO n. a short rondo. |
| THERMOMOTOR | • THERMOMOTOR n. an engine that produces force from the expansion of a heated fluid. |
| TOOTHSOMELY | • toothsomely adv. In a toothsome manner. • TOOTHSOME adv. attractive; palatable. |
| TROPHOZOITE | • trophozoite n. A protozoan in the feeding stage of its life cycle. • TROPHOZOITE n. in Protozoa, the trophic phase of an adult. |