| AEPYORNISES | • Aepyornises n. Plural of Aepyornis. • AEPYORNIS n. (Greek) a large fossil bird of Madagascar. |
| CHRYSOPHANS | • CHRYSOPHAN n. an old name for chrysarobin. |
| HYPONASTIES | • HYPONASTY n. a tendency in part of a plant to grow more rapidly on the underside, so that it curves upwards. |
| NANOPHYSICS | • nanophysics n. Nanoscale physics. • NANOPHYSICS n. physics on an atomic and molecular scale. |
| NOTARYSHIPS | • notaryships n. Plural of notaryship. • NOTARYSHIP n. the office of notary. |
| POLYSEMANTS | • polysemants n. Plural of polysemant. • POLYSEMANT n. a word with many meanings. |
| PYRANOSIDES | • pyranosides n. Plural of pyranoside. • PYRANOSIDE n. a glycoside containing the pyran ring. |
| SCYPHOZOANS | • scyphozoans n. Plural of scyphozoan. • SCYPHOZOAN n. any of a class of medusoid coelenterates; a jelly fish. |
| SPORTSMANLY | • sportsmanly adj. Befitting a sportsman; being or demonstrating the conduct expected of players of sport. • SPORTSMANLY adj. like a sportsman. |
| STANNOTYPES | • stannotypes n. Plural of stannotype. • STANNOTYPE n. a photograph taken upon a tin plate. |
| SYNALOEPHAS | • synaloephas n. Plural of synaloepha. • synalœphas n. Plural of synalœpha. • SYNALOEPHA n. the melting of a final vowel or diphthong into the initial vowel or diphthong of the next word, also SYNALEPHA. |
| 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. |
| SYNCOPATORS | • syncopators n. Plural of syncopator. • SYNCOPATOR n. one who syncopates. |
| SYNSEPALOUS | • synsepalous adj. (Botany) gamosepalous. • SYNSEPALOUS adj. another word for gamosepalous, with sepals partly united. |