16-letter words containing e, x, t, r, a, i
- recreational sex — sex for the purpose of pleasure rather than reproduction, without the commitment of a relationship
- refractive index — index of refraction.
- relative maximum — maximum (def 4a).
- relative-maximum — maximum (def 4a).
- rich text format — (RTF) An interchange format from Microsoft for exchange of documents between Word and other document preparation systems.
- rotation of axes — a process of replacing the axes in a Cartesian coordinate system with a new set of axes making a specified angle with and having the same origin as the original axes.
- sexual relations — sexual intercourse; coitus.
- 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.
- 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.
- 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.