| ASTROCOMPASS | • astrocompass n. A form of compass in which direction is evaluated by sighting stars of known position. • ASTROCOMPASS n. a navigational instrument for giving directional bearings from the centre of the earth to a particular star. |
| COMMISSAIRES | • commissaires n. Plural of commissaire. • COMMISSAIRE n. in professional cycle racing, a referee who travels in an open-topped car with the riders to witness any infringement of the rules. |
| COMMISSARIES | • commissaries n. Plural of commissary. • COMMISSARY n. one to whom is committed some charge, duty, or office, by a superior power. |
| CREAMINESSES | • creaminesses n. Plural of creaminess. • CREAMINESS n. the state of being creamy. |
| CROSSMATCHES | • crossmatches v. Third-person singular simple present indicative form of crossmatch. |
| MACROFOSSILS | • macrofossils n. Plural of macrofossil. • MACROFOSSIL n. a fossil large enough to be seen with the naked eye. |
| MARSHLOCKSES | • MARSHLOCKS n. a marsh-growing species of cinquefoil. |
| SARCOMATOSES | • sarcomatoses n. Plural of sarcomatosis. • SARCOMATOSIS n. a disease characterized by the presence and spread of sarcomas. |
| SARCOMATOSIS | • sarcomatosis n. (Pathology) The spread of a sarcoma throughout the body. • SARCOMATOSIS n. a disease characterized by the presence and spread of sarcomas. |
| SARDONICISMS | • sardonicisms n. Plural of sardonicism. • SARDONICISM n. the state of being sardonic. |
| SCOUTMASTERS | • scoutmasters n. Plural of scoutmaster. • Scoutmasters n. Plural of Scoutmaster. • SCOUTMASTER n. the leader of a band of scouts. |
| SUPREMACISMS | • supremacisms n. Plural of supremacism. • SUPREMACISM n. belief in the supremacy of one particular group of people. |
| SUPREMACISTS | • supremacists n. Plural of supremacist. • SUPREMACIST n. an advocate or adherent of group supremacy. |
| SYMPOSIARCHS | • symposiarchs n. Plural of symposiarch. • SYMPOSIARCH n. the master, director, etc. of a feast or conference. |