| CALIFORNIUMS | • CALIFORNIUM n. a synthetic element produced in trace quantities by helium isotope bombardment of curium. |
| CONTORNIATES | • contorniates n. Plural of contorniate. • CONTORNIATE n. a coin or medal with a deep groove round the disc. |
| FORNICATIONS | • fornications n. Plural of fornication. • FORNICATION n. consensual sexual intercourse between two persons not married to each other. |
| FORNICATRESS | • fornicatress n. (Obsolete) A woman guilty of fornication. • FORNICATRESS n. a female fornicator. |
| HAWTHORNIEST | • HAWTHORNY adj. like hawthorn. |
| ORNITHOGALUM | • Ornithogalum prop.n. A taxonomic genus within the family Asparagaceae – plants called star-of-Bethlehem and close relatives. • ORNITHOGALUM n. a plant of a large genus of herbs of the family Liliaceae. |
| ORNITHOLOGIC | • ornithologic adj. Of or relating to ornithology; ornithological. • ORNITHOLOGIC adj. relating to ornithology, also ORNITHOLOGICAL. |
| ORNITHOMANCY | • ornithomancy n. Divination by means of birds, especially from their behaviour, flight, vocalisations, etc. • ORNITHOMANCY n. divination by observing flight of birds. |
| ORNITHOMORPH | • ornithomorph n. A figure in ancient art resembling a bird. • ORNITHOMORPH n. a figure or design in the form of a bird. |
| ORNITHOPHILY | • ornithophily n. Pollination by birds. • ORNITHOPHILY n. pollination by birds. |
| ORNITHOPTERS | • ornithopters n. Plural of ornithopter. • ORNITHOPTER n. a birdlike archaic flying machine. |
| ORNITHOSAURS | • ORNITHOSAUR n. a pterodactyl. |
| ORNITHOSCOPY | • ornithoscopy n. Birdwatching. • ORNITHOSCOPY n. bird watching. |
| THORNINESSES | • thorninesses n. Plural of thorniness. • THORNINESS n. the state of being thorny. |