| BIORHYTHMS | • biorhythms n. Plural of biorhythm. • BIORHYTHM n. a periodic change in the behaviour or physiology of many animals and plants (e.g. hibernation and migration) mediated by hormones which are in turn influenced by changes in day-length. |
| FRITHBORHS | • frithborhs n. Plural of frithborh. • FRITHBORH n. (Old English) a surety for keeping the peace, aka frankpledge. |
| HOMEBIRTHS | • homebirths n. Plural of homebirth. • HOMEBIRTH n. the act of giving birth to a child in one's own home. |
| RHABDOLITHS | • rhabdoliths n. Plural of rhabdolith. • RHABDOLITH n. a calcareous rod in some Protozoa. |
| BIORHYTHMICS | • biorhythmics n. The study of biorhythms. • BIORHYTHMICS n. the study of biorhythms. |
| OPISTHOBRANCH | • opisthobranch n. (Zoology) A gastropod with gills behind the heart, formerly thought to belong to a single group. • opisthobranch adj. (Of gills) Placed behind the heart. • opisthobranch adj. (Of a gastropod) Having gills placed behind the heart. |
| THIRDBOROUGHS | • thirdboroughs n. Plural of thirdborough. • THIRDBOROUGH n. (historical) an under-constable. |
| TOOTHBRUSHING | • toothbrushing v. Present participle of toothbrush. • toothbrushing n. An act of brushing the teeth. • TOOTHBRUSHING n. the action of using a toothbrush to clean teeth. |
| ARITHMOPHOBIAS | • ARITHMOPHOBIA n. a fear of numbers. |
| ERYTHROPHOBIAS | • ERYTHROPHOBIA n. an aversion to the color red; an extreme fear of blushing. |
| HYPNOBIRTHINGS | • HYPNOBIRTHING n. the use of hypnotic technique during labour by an expectant mother to reduce the pain and emotional stress of delivery. |
| OPISTHOBRANCHS | • opisthobranchs n. Plural of opisthobranch. • OPISTHOBRANCH n. a type of mollusc having gills, little or no shell, two pairs of tentacles. |
| ORNITHOPHOBIAS | • ORNITHOPHOBIA n. fear of birds. |
| THROMBOPHILIAS | • thrombophilias n. Plural of thrombophilia. • THROMBOPHILIA n. combined inflammation and thrombosis of a vein. |
| TOOTHBRUSHINGS | • toothbrushings n. Plural of toothbrushing. • TOOTHBRUSHING n. the action of using a toothbrush to clean teeth. |
| ANTHROPOPHOBIAS | • ANTHROPOPHOBIA n. fear of humans. |
| ANTHROPOPHOBICS | • anthropophobics n. Plural of anthropophobic. • ANTHROPOPHOBIC n. someone having a fear of humans. |
| BATRACHOPHOBIAS | • BATRACHOPHOBIA n. fear of frogs and toads. |
| BRACHISTOCHRONE | • brachistochrone n. (Mathematics) A cycloid; the curve of fastest descent between two points. • BRACHISTOCHRONE n. the curve along which a particle acted on by a force (e.g. gravity) will pass in the shortest time from one given point to another. |