| CATECHUMENSHIPS | • CATECHUMENSHIP n. the office of catechumen. |
| CHEMOSPHERES | • chemospheres n. Plural of chemosphere. • CHEMOSPHERE n. the thermosphere, the outermost layer of the atmosphere. |
| CHEMOTHERAPISTS | • chemotherapists n. Plural of chemotherapist. • CHEMOTHERAPIST n. one who practises chemotherapy. |
| CHROMATOSPHERES | • chromatospheres n. Plural of chromatosphere. • CHROMATOSPHERE n. a layer of incandescent gas surrounding the sun through which the light of the photosphere passes. |
| CHROMOSPHERES | • chromospheres n. Plural of chromosphere. • CHROMOSPHERE n. the region of the atmosphere of a star between the star's photosphere and its corona. |
| HYPSOCHROMES | • HYPSOCHROME n. a shift to a shorter wavelength in the absorption spectrum of a compound. |
| OPHTHALMOSCOPES | • ophthalmoscopes n. Plural of ophthalmoscope. • OPHTHALMOSCOPE n. an instrument for viewing the interior of the eye. |
| PHOTOCHEMISTS | • photochemists n. Plural of photochemist. • PHOTOCHEMIST n. a practitioner of photochemistry. |
| PHYTOCHEMISTS | • phytochemists n. Plural of phytochemist. • PHYTOCHEMIST n. a chemist specialising in plant. |
| PSYCHOCHEMICALS | • psychochemicals n. Plural of psychochemical. • PSYCHOCHEMICAL n. a psychoactive chemical. |
| PSYCHOCHEMISTRY | • psychochemistry n. The study of the psychological effects of chemicals on the brain. • PSYCHOCHEMISTRY n. the treatment of mental illness by drugs. |
| PSYCHOMACHIES | • psychomachies n. Plural of psychomachy. • PSYCHOMACHY n. conflict of the soul. |
| SACHEMSHIP | • sachemship n. The office or position of a sachem. • SACHEMSHIP n. the office or condition of a sachem. |
| SACHEMSHIPS | • sachemships n. Plural of sachemship. • SACHEMSHIP n. the office or condition of a sachem. |
| SCAPHOCEPHALISM | • SCAPHOCEPHALISM n. the state of being scaphocephalic, having an abnormally long and narrow boat-shaped skull. |