| 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. |
| ASTROLOGISTS | • astrologists n. Plural of astrologist. • ASTROLOGIST n. one who affects to tell fortunes from the stars, also ASTROLOGER. |
| ASTRONOMISES | • astronomises v. Third-person singular simple present indicative form of astronomise. • ASTRONOMISE v. to study astronomy, also ASTRONOMIZE. |
| BLASTOSPORES | • blastospores n. Plural of blastospore. • BLASTOSPORE n. the orifice of a gastrula. |
| CANOROUSNESS | • canorousness n. The quality of being musical. • CANOROUSNESS n. the state of being canorous. |
| CONTRABASSOS | • contrabassos n. Plural of contrabasso. • CONTRABASSO n. (Italian) the double bass, also CONTRABASS, CONTRABBASSO, COUNTERBASE. |
| GASTROSCOPES | • gastroscopes n. Plural of gastroscope. • GASTROSCOPE n. an instrument for examining interior of the stomach. |
| GOOSEGRASSES | • goosegrasses n. Plural of goosegrass. • GOOSEGRASS n. a Eurasian plant with a bristly stem and fruits that cling to clothes etc., aka cleavers. |
| JOHNSONGRASS | • johnsongrass n. Alternative spelling of Johnson grass. • Johnson␣grass n. A perennial Mediterranean grass (Sorghum halepense) cultivated for forage, but considered invasive and noxious. • JOHNSONGRASS n. a tall perennial sorghum widely used as forage. |
| MACROFOSSILS | • macrofossils n. Plural of macrofossil. • MACROFOSSIL n. a fossil large enough to be seen with the naked eye. |
| SACROCOSTALS | • SACROCOSTAL n. a muscle connecting sacrum and ribs. |
| SANDERSWOODS | • SANDERSWOOD n. sandalwood, esp. red sandalwood, also SANDERS. |
| 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. |
| SMORGASBORDS | • smorgasbords n. Plural of smorgasbord. • smörgåsbords n. Plural of smörgåsbord. • SMORGASBORD n. (Norwegian) a buffet featuring various dishes, such as hors d'oeuvres, salads, etc., also SMORBROD, SMORG, SMORREBROD. |
| SNAPSHOOTERS | • snapshooters n. Plural of snapshooter. • SNAPSHOOTER n. one who takes snapshots. |
| STAUROSCOPES | • stauroscopes n. Plural of stauroscope. • STAUROSCOPE n. an instrument for studying the structure of crystals with polarised light. |
| VAPOROUSNESS | • vaporousness n. The condition of being vaporous. • VAPOROUSNESS n. the state of being vaporous. |
| VASOPRESSORS | • vasopressors n. Plural of vasopressor. • VASOPRESSOR n. a drug causing a rise in blood pressure by exerting a vasoconstrictor effect. |