| BIOSYSTEMATISTS | • biosystematists n. Plural of biosystematist. • BIOSYSTEMATIST n. one who studies biosystematics. |
| HYPEROSTOSISES | • HYPEROSTOSIS n. abnormal growth of bone tissue. |
| HYPOSENSITISES | • hyposensitises v. Third-person singular simple present indicative form of hyposensitise. • HYPOSENSITISE v. to cause (a person) to become less sensitive to (a substance producing an allergic reaction), also HYPOSENSITIZE. |
| HYPOSTASISES | • hypostasises v. Third-person singular simple present indicative form of hypostasise. • HYPOSTASISE v. to treat as hypostasis, to personify, also HYPOSTASIZE, HYPOSTATISE, HYPOSTATIZE. |
| HYPOSTRESSES | • HYPOSTRESS n. insufficient stress. |
| MYSTERIOUSNESS | • mysteriousness n. The quality of being mysterious. • MYSTERIOUSNESS n. the state of being mysterious. |
| POLYSYNTHESISMS | • POLYSYNTHESISM n. the state of being polysynthetic. |
| PSYCHOSYNTHESES | • psychosyntheses n. Plural of psychosynthesis. • PSYCHOSYNTHESIS n. a form of psychotherapy combining psychoanalytic techniques with meditation and exercise. |
| PSYCHOSYNTHESIS | • psychosynthesis n. A form of psychology based on the direct experience of the self. • PSYCHOSYNTHESIS n. a form of psychotherapy combining psychoanalytic techniques with meditation and exercise. |
| PYCNODYSOSTOSES | • pycnodysostoses n. Plural of pycnodysostosis. • PYCNODYSOSTOSIS n. a rare inherited bone disease characterized by short stature and thickening and fragility of the bones. |
| PYKNODYSOSTOSES | • PYKNODYSOSTOSIS n. a rare inherited bone disease characterized by short stature and thickening and fragility of the bones. |
| SARCOCYSTISES | • SARCOCYSTIS n. a sporozoan of the genus Sarcocystis, parasitic in muscles of mammals. |
| SCHOOLMISTRESSY | • schoolmistressy adj. Resembling or characteristic of a schoolmistress. • SCHOOLMISTRESSY adj. like a schoolmistress, prim. |
| SYNAPOSEMATISMS | • SYNAPOSEMATISM n. warning coloration common to many species in region. |
| SYNOSTOSES | • synostoses n. Plural of synostosis. • SYNOSTOSIS n. a complete union of bones. |
| SYNTHESISATIONS | • SYNTHESISATION n. the process of synthesising, also SYNTHESIZATION. |
| SYSTEMISATIONS | • systemisations n. Plural of systemisation. • SYSTEMISATION n. the act of systemising, also SYSTEMIZATION. |
| TOMBOYISHNESSES | • TOMBOYISHNESS n. the state of being tomboyish. |
| TOYISHNESSES | • TOYISHNESS n. the state of being toyish. |
| TYRANNOUSNESSES | • TYRANNOUSNESS n. the state of being tyrannous. |