| 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.
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| BREAKTHROUGH | • breakthrough adj. Characterized by major progress or overcoming some obstacle. • breakthrough adj. (Immunology) Involving the contraction of a disease by a person with a decreased susceptibility, such…
 • breakthrough adj. (Medicine) The emergence or one or more symptoms of a condition despite medication or other medical treatment.
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| BREAKTHROUGHS | • breakthroughs n. Plural of breakthrough. • BREAKTHROUGH n. an offensive thrust that penetrates and carries beyond a defensive line in warfare.
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| 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.
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| ERYTHROPHOBIAS | • ERYTHROPHOBIA n. an aversion to the color red; an extreme fear of blushing. | 
| HEARTTHROB | • heartthrob n. A heartbeat. • heartthrob n. The object of one’s desires or infatuation; a sweetheart.
 • heartthrob n. A handsome male celebrity.
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| HEARTTHROBS | • heartthrobs n. Plural of heartthrob. • HEARTTHROB n. an object of affection.
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| 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.
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| MOUTHBREATHERS | • mouthbreathers n. Plural of mouthbreather. • mouth-breathers n. Plural of mouth-breather an alternative spelling of mouth breather.
 • mouth␣breathers n. Plural of mouth breather.
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| THARBOROUGH | • THARBOROUGH n. (Shakespeare) a mispronunciation of thirdborough, also FARBOROUGH. | 
| THARBOROUGHS | • THARBOROUGH n. (Shakespeare) a mispronunciation of thirdborough, also FARBOROUGH. | 
| THERMOBAROGRAPH | • thermobarograph n. An instrument for recording simultaneously the pressure and temperature of a gas; a combined thermograph… • THERMOBAROGRAPH n. a device that simultaneously records the temperature and pressure of the atmosphere.
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| 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.
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| THOROUGHBRACED | • THOROUGHBRACED adj. fitted with a thoroughbrace. | 
| THOROUGHBRACES | • thoroughbraces n. Plural of thoroughbrace. • THOROUGHBRACE n. any of several leather straps supporting the body of a carriage and serving as springs.
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