| ARITHMOPHOBIA | • arithmophobia n. The irrational fear of numbers or arithmetic. • ARITHMOPHOBIA n. a fear of numbers. |
| BREAKTHROUGHS | • breakthroughs n. Plural of breakthrough. • BREAKTHROUGH n. an offensive thrust that penetrates and carries beyond a defensive line in warfare. |
| ERYTHROPHOBIA | • erythrophobia n. Abnormal and persistent fear of blushing. • erythrophobia n. Abnormal and persistent fear of the colour red. • ERYTHROPHOBIA n. an aversion to the color red; an extreme fear of blushing. |
| HYPNOBIRTHING | • hypnobirthing n. The use of hypnotherapy to ease the process of childbirth. • HYPNOBIRTHING n. the use of hypnotic technique during labour by an expectant mother to reduce the pain and emotional stress of delivery. |
| MOUTHBREATHER | • mouthbreather n. Alternative spelling of mouth breather. • mouth-breather n. Alternative spelling of mouth breather. • mouth␣breather n. A person who routinely inhales and exhales through the mouth, instead of through the nose. |
| 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. |
| ORNITHOPHOBIA | • ornithophobia n. Fear of birds. • ORNITHOPHOBIA n. fear of birds. |
| THIRDBOROUGHS | • thirdboroughs n. Plural of thirdborough. • THIRDBOROUGH n. (historical) an under-constable. |
| THOROUGHBRACE | • thoroughbrace n. (Dated) A leather strap supporting the body of a carriage, and attached to springs or serving as a spring itself. • THOROUGHBRACE n. any of several leather straps supporting the body of a carriage and serving as springs. |
| THOROUGHBREDS | • thoroughbreds n. Plural of thoroughbred. • Thoroughbreds n. Plural of Thoroughbred. • THOROUGHBRED n. a horse so bred. |
| THROMBOPHILIA | • thrombophilia n. (Pathology) The tendency to develop thrombosis (blood clots) due to an abnormality in the system of coagulation. • THROMBOPHILIA n. combined inflammation and thrombosis of a vein. |
| 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. |