(US politics) The day in February or March on which a large number of states hold their primary elections for the process of nominating presidential candidates.

(chiefly used in Ireland, Canada and Australia) Shrove Tuesday.

plural of tue

An electronic amplifier device invented in 1906, the forerunner of the triode.

Alternative form of bathtub

(mycology) A fleshy mass of tissue located at the junction of the a mushroom and its substrate.

(medicine, biochemistry) Any of several polypeptide hormones, produced by macrophages, that can destroy some cancer cells.

Alternative spelling of tube steak

(chiefly Canada, US, idiomatic, humorous) A frankfurter/hot dog. / (slang, Canada, US) A penis.

Alternative spelling of tumble dryer