| COLOTOMIES | • colotomies n. Plural of colotomy. • COLOTOMY n. a surgical incision of the colon. |
| LOBOTOMIES | • lobotomies n. Plural of lobotomy. • LOBOTOMY n. a type of surgical operation. |
| LOBOTOMISE | • lobotomise v. Alternative form of lobotomize. • LOBOTOMISE v. to carry out a lobotomy, also LOBOTOMIZE. |
| LOBOTOMIZE | • lobotomize v. (Transitive) To perform a lobotomy upon. • lobotomize v. (Transitive, figurative) To remove the vitality or intelligence from. • LOBOTOMIZE v. to carry out a lobotomy, also LOBOTOMISE. |
| LOCOMOTIVE | • locomotive n. (Rail transport) The power unit of a train that pulls the coaches or wagons. • locomotive n. (Rare) A traction engine. • locomotive n. (Slang) A cheer characterized by a slow beginning and a progressive increase in speed. |
| OBSOLETION | • obsoletion n. Obsolescence. • OBSOLETION n. obsolescence. |
| ODONTOLITE | • odontolite n. (Mineralogy) A fossil tooth coloured a bright blue by iron phosphate, used as an imitation turquoise. • ODONTOLITE n. a fossil bone or tooth coloured blue with phosphate of iron, aka bone-turquoise. |
| OECOLOGIST | • œcologist n. Obsolete form of ecologist. • OECOLOGIST n. a student of oecology, also ECOLOGIST. |
| OENOLOGIST | • oenologist n. An expert in the science of oenology. • œnologist n. Obsolete form of oenologist. • OENOLOGIST n. one versed in oenology, a student of wine. |
| ONTOLOGIES | • ontologies n. Plural of ontology. • ONTOLOGY n. the branch of philosophy the deals with being. |
| OPTOLOGIES | • OPTOLOGY n. the study of sight. |
| OREOLOGIST | • oreologist n. (Obsolete) Alternative form of orologist. • OREOLOGIST n. one versed in oreology, the study of mountains, also OROLOGIST. |
| TOCOLOGIES | • TOCOLOGY n. a branch of medicine dealing with childbirth, also TOKOLOGY. |
| TOKOLOGIES | • TOKOLOGY n. a branch of medicine dealing with childbirth, also TOCOLOGY. |
| TOPOLOGIES | • topologies n. Plural of topology. • TOPOLOGY n. the branch of mathematics that deals with those properties of figures and surfaces which are independent of size and shape. |