| 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. |
| HYPOCORISMS | • hypocorisms n. Plural of hypocorism. • HYPOCORISM n. the use of a pet name or nickname, also HYPOCORISMA. |
| MYRIOSCOPES | • myrioscopes n. Plural of myrioscope. • MYRIOSCOPE n. a form of kaleidoscope. |
| MYSOPHOBIAS | • mysophobias n. Plural of mysophobia. • MYSOPHOBIA n. an irrational fear of dirt. |
| MYTHOPOESES | • mythopoeses n. Plural of mythopoesis. • MYTHOPOESIS n. the making of myths. |
| MYTHOPOESIS | • mythopoesis n. Creation of myth. • MYTHOPOESIS n. the making of myths. |
| PHOTOSYSTEM | • photosystem n. (Biochemistry) Either of two biochemical systems, active in chloroplasts, that are part of photosynthesis. • PHOTOSYSTEM n. either of two photochemical reaction centers consisting chiefly of photosynthetic pigments complexed with protein and occurring in chloroplasts. |
| PSYCHOPOMPS | • psychopomps n. Plural of psychopomp. • PSYCHOPOMP n. a guide of souls, one who escorts the soul of a newly-deceased to the afterlife. |
| SOMATOTYPES | • somatotypes n. Plural of somatotype. • SOMATOTYPE v. to place with regard to somatotype. |
| SYMPHONIONS | • symphonions n. Plural of symphonion. • SYMPHONION n. a combination of piano and harmonium. |
| SYMPHONIOUS | • symphonious adj. Of or pertaining to simultaneous sounds that are harmonious together. • SYMPHONIOUS adj. agreeing esp. in sound. |
| SYNAPTOSOME | • synaptosome n. A structure containing vesicles and mitochondria of a synapse that is obtained when brain tissue is homogenized. • SYNAPTOSOME n. a nerve ending that is isolated from homogenized nerve tissue. |
| TOPONYMISTS | • toponymists n. Plural of toponymist. • TOPONYMIST n. one who studies toponymy, the study of place-names. |