| BICONCAVITIES | • biconcavities n. Plural of biconcavity. • BICONCAVITY n. the state of being biconcave. |
| COACERVATIONS | • coacervations n. Plural of coacervation. • COACERVATION n. an aggregation of particles of an emulsoid into liquid droplets before flocculation. |
| COMMUNICATIVE | • communicative adj. Eager to communicate; talkative. • COMMUNICATIVE adj. tending to communicate. |
| CONCENTRATIVE | • concentrative adj. Characterised by concentration. • CONCENTRATIVE adj. tending to concentrate. |
| CONTRACEPTIVE | • contraceptive adj. That acts to prevent conception as a result of sexual intercourse. • contraceptive n. A mechanism or means by which conception as a result of sexual intercourse can be prevented or made less likely. • CONTRACEPTIVE n. something intended to prevent conception. |
| CONTRACTIVELY | • CONTRACTIVE adv. tending to contract. |
| CONTRADICTIVE | • contradictive adj. (Now rare) Contradictory. • CONTRADICTIVE adj. contradicting or tending to contradict. |
| CONTRAOCTAVES | • contraoctaves n. Plural of contraoctave. • contra-octaves n. Plural of contra-octave. • CONTRAOCTAVE n. the musical octave that begins on the third C below middle C. |
| CONVALESCENTS | • convalescents n. Plural of convalescent. • CONVALESCENT n. one who is recovering. |
| COUNTERACTIVE | • counteractive adj. That counteracts. • COUNTERACTIVE adj. serving to counteract. |
| INTERCLAVICLE | • interclavicle n. (Anatomy) The episternum. • INTERCLAVICLE n. a membrane bone between and beneath the clavicles, present in some fossil amphibians, all reptiles except snakes, and monotremes. |
| REVACCINATING | • revaccinating v. Present participle of revaccinate. • REVACCINATE v. to vaccinate again. |
| REVACCINATION | • revaccination n. A second or subsequent vaccination. • REVACCINATION n. the act of revaccinating. |
| VOLCANICITIES | • volcanicities n. Plural of volcanicity. • VOLCANICITY n. the state of being volcanic, also VULCANICITY. |
| VULCANICITIES | • vulcanicities n. Plural of vulcanicity. • VULCANICITY n. the state of being vulcanic, also VOLCANICITY. |