(mineralogy) A tetragonal-dipyramidal black mineral containing barium, iron, oxygen, and titanium.

simple past tense and past participle of tetramerize

(organic chemistry) A polyhydroxy cyclic alcohol, 2-0-methyl-chiro-inositol, obtained from the latex of the rubber tree as a starting point in the synthesis of several pharmaceuticals

(organic chemistry) The mono-amide of oxalic acid and aniline - C₆H₅-NH-(CO)-CO₂H