algebraic geometry An algebraic variety equipped a group action of an algebraic torus.

(aviation) Initialism of top of descent.

simple past tense and past participle of t-bone

present participle of t-bone

(engineering) Initialism of Geometric Dimensioning and Tolerancing.

Abbreviation of Yukon Territory.

A large beef steak, containing a T-shaped bone.

(astronomy) Any of a class of young visible stars having optical variability; they are often surrounded by a protoplanetary disc.

(statistics) A distribution that arises when the population standard deviation is unknown and has to be estimated from the data.

(statistics) Any statistical hypothesis test in which the test statistic has a Student's t-distribution if the null hypothesis is true.