16-letter words containing t, a, x, i
- 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.
- symmetric matrix — a matrix with the lower-left half equal to the mirror image of the upper-right half; a matrix that is its own transpose.
- tax depreciation — Tax depreciation is depreciation in a company's internal financial records that is different from the amount that is used for the internal books.
- texas revolution — a revolutionary movement, 1832–36, in which U.S. settlers asserted their independence from Mexico and established the republic of Texas.
- titanium dioxide — a white, water-insoluble powder, TiO 2 , used chiefly in white pigments, plastics, ceramics, and for delustering synthetic fibers.
- 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.
- tuxtla gutierrez — a state in S Mexico. 28,732 sq. mi. (74,415 sq. km). Capital: Tuxtla Gutiérrez.
- uranium trioxide — a radioactive orange powder, UO 3 , used in the manufacture of some ceramics.
- volatility index — beta (def 6).
- win the exchange — to win a rook in return for a bishop or knight
- x-ray technician — a technician who specializes in taking and processing x-rays, especially in a hospital or clinic.
- xaverian brother — a member of a congregation of Roman Catholic laymen bound by simple vows and dedicated to education.