16-letter words containing i, c, e, a, x
- proxima centauri — the nearest star to the sun at a distance of 4.3 light-years, part of the Alpha Centauri triple-star system located in the constellation Centaurus.
- proxime accessit — the person coming next after the winner in a competitive examination or an academic prize giving; runner-up
- radiant exitance — the ability of a surface to emit radiation expressed as the radiant flux emitted per unit area at a specified point on the surface
- recreational sex — sex for the purpose of pleasure rather than reproduction, without the commitment of a relationship
- refractive index — index of refraction.
- rich text format — (RTF) An interchange format from Microsoft for exchange of documents between Word and other document preparation systems.
- self-explication — the act of explicating.
- 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.
- social exclusion — Social exclusion is the act of making certain groups of people within a society feel isolated and unimportant.
- spherical excess — the difference between the sum of the angles of a spherical triangle and two right angles.
- 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.
- 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.