| CRYPTAESTHESIA | • CRYPTAESTHESIA n. supernormal perception, e.g. clairvoyance, also CRYPTESTHESIA. |
| HYPERAESTHESIA | • hyperaesthesia n. Alternative spelling of hyperesthesia. • hyperæsthesia n. Obsolete form of hyperaesthesia. • HYPERAESTHESIA n. excessive sensitivity, also HYPERESTHESIA. |
| HYPERPARASITES | • hyperparasites n. Plural of hyperparasite. • HYPERPARASITE n. a parasite that is parasitic upon another parasite. |
| METAPHYSICIANS | • metaphysicians n. Plural of metaphysician. • METAPHYSICIAN n. a student of or specialist in metaphysics. |
| PHOTOCATALYSES | • PHOTOCATALYSIS n. the promotion, acceleration or retardation of a chemical reaction by light. |
| PHOTOCATALYSIS | • photocatalysis n. (Chemistry) catalysis by a photocatalyst. • PHOTOCATALYSIS n. the promotion, acceleration or retardation of a chemical reaction by light. |
| POSTAPOCALYPSE | • postapocalypse n. The time after the apocalypse. • post-apocalypse n. Alternative spelling of postapocalypse. |
| PSYCHASTHENIAS | • psychasthenias n. Plural of psychasthenia. • PSYCHASTHENIA n. an incapacity to resolve doubts/uncertainties or to resist obsessions/compulsions that one knows are irrational. |
| PSYCHOANALYSTS | • psychoanalysts n. Plural of psychoanalyst. • PSYCHOANALYST n. a practitioner of psychoanalysis. |
| SPHAEROCRYSTAL | • sphaerocrystal n. Alternative form of spherocrystal. • SPHAEROCRYSTAL n. a rounded crystalline mass. |
| STAPHYLOPLASTY | • staphyloplasty n. (Surgery) Plastic surgery to replace or repair the uvula and the soft palate. • STAPHYLOPLASTY n. plastic surgery involving the soft palate and the uvula. |
| SYNAPOSEMATISM | • SYNAPOSEMATISM n. warning coloration common to many species in region. |
| TACHYGRAPHISTS | • tachygraphists n. Plural of tachygraphist. • TACHYGRAPHIST n. a shorthand writer, also TACHYGRAPH, TACHYGRAPHER. |
| THALASSOGRAPHY | • thalassography n. The scientific study of marine life. • THALASSOGRAPHY n. the science of the sea. |
| YACHTSMANSHIPS | • yachtsmanships n. Plural of yachtsmanship. • YACHTSMANSHIP n. the art of sailing a yacht. |