16-letter words containing t, e, x, o, s
- sexual selection — a special type of natural selection in which the sexes acquire distinct forms either because the members of one sex choose mates with particular features or because in the competition for mates among the members of one sex only those with certain traits succeed.
- simple extension — an extension field of a given field, obtained by forming all polynomials in a specified element with coefficients contained in the given field.
- sulfamethoxazole — an antimicrobial substance, C 1 0 H 1 1 N 3 O 3 S, used against a variety of susceptible Gram-positive and Gram-negative organisms, as in the treatment of certain urinary tract infections and skin infections.
- sulphur trioxide — a white corrosive substance existing in three crystalline forms of which the stable (alpha-) form is usually obtained as silky needles. It is produced by the oxidation of sulphur dioxide, and is used in the sulphonation of organic compounds. Formula: SO3
- texas revolution — a revolutionary movement, 1832–36, in which U.S. settlers asserted their independence from Mexico and established the republic of Texas.
- the opposite sex — women in relation to men or men in relation to women
- the-little-foxes — a play (1939) by Lillian Hellman.
- triple-expansion — noting a power source, especially a steam engine, using the same fluid at three successive stages of expansion to do work in three or more cylinders.
- world exposition — world's fair.
- xenotransplanted — Transplanted by xenotransplantation.