: a tetragonal mineral consisting of titanium dioxide and used especially as a white pigment
Example Sentences
Recent Examples on the WebTitanium oxide is rare on Earth, found in minerals such as rutile, anatase, and brookite. Jay Bennett, Popular Mechanics, 13 Sep. 2017
Word History
Etymology
borrowed from French, borrowed from Greek anátasis "extension upward, height," action noun derivative (with -sis -sis) from anateínein "to stretch out, lift up, extend," from ana- ana- + teínein "to stretch, extend" — more at tenant entry 1
Note: The term was introduced by the French mineralogist René Just Haüy (1743-1822) in Traité de Minéralogie, tome 3 (Paris, 1801), p. 129. The name alludes to the steep angle of the crystal's pyramid relative to other minerals.