| DYSPROSIUMS | • DYSPROSIUM n. a rare-earth metal used in nuclear research. |
| GYMNOSPERMS | • gymnosperms n. Plural of gymnosperm. • GYMNOSPERM n. a plant with the ovules borne naked or unprotected, the conifers or cone-bearing plants and their allies. |
| GYROCOMPASS | • gyrocompass n. A north-seeking form of gyroscope used as a directional reference in navigation. • gyrocompass v. To use a gyrocompass. • gyro␣compass n. Alternative form of gyrocompass. |
| HYPEROSMIAS | • HYPEROSMIA n. an abnormally acute sense of smell. |
| HYPOCORISMS | • hypocorisms n. Plural of hypocorism. • HYPOCORISM n. the use of a pet name or nickname, also HYPOCORISMA. |
| HYPSOMETERS | • hypsometers n. Plural of hypsometer. • HYPSOMETER n. an instrument for measuring height of trees through triangulation. |
| KARYOPLASMS | • karyoplasms n. Plural of karyoplasm. • KARYOPLASM n. nucleoplasm. |
| MYRIOSCOPES | • myrioscopes n. Plural of myrioscope. • MYRIOSCOPE n. a form of kaleidoscope. |
| POLYMERASES | • polymerases n. Plural of polymerase. • POLYMERASE n. an enzyme present in cell nuclei which promotes the polymerization of DNA. |
| POLYMERISES | • polymerises v. Third-person singular simple present indicative form of polymerise. • POLYMERISE v. to make into a polymer, also POLYMERIZE. |
| POLYMERISMS | • polymerisms n. Plural of polymerism. • POLYMERISM n. the state, quality, or relation of two or more polymeric substances. |
| PROSELYTISM | • proselytism n. The practice of proselytizing or the state of being a proselyte. • PROSELYTISM n. conversion. |
| PSYCHOGRAMS | • psychograms n. Plural of psychogram. • PSYCHOGRAM n. writing supposedly produced under influence of spirits. |
| SPORTSMANLY | • sportsmanly adj. Befitting a sportsman; being or demonstrating the conduct expected of players of sport. • SPORTSMANLY adj. like a sportsman. |
| STASIMORPHY | • stasimorphy n. Any deviation from the normal form of a bodily organ due to arrested development. • STASIMORPHY n. structural modification by arrested development. |
| SYMPOSIARCH | • symposiarch n. (Historical, Ancient Greece) The master of a feast. • SYMPOSIARCH n. the master, director, etc. of a feast or conference. |