triatomic (not comparable)
(chemistry, of a molecule etc.) Consisting of three atoms.
• monatomic
• diatomic
• tetratomic
Source: Wiktionary
Tri`a*tom"ic, a. Etym: [Pref. tri- + atomic.] (Chem.) (a) Having three atoms; -- said of certain elements or radicals. (b) Having a valence of three; trivalent; sometimes, in a specific sense, having three hydroxyl groups, whether acid or basic; thus, glycerin, glyceric acid, and tartronic acid are each triatomic.
Source: Webster’s Unabridged Dictionary 1913 Edition
18 December 2024
(noun) (linguistics) the form of a word after all affixes are removed; “thematic vowels are part of the stem”
The first coffee-house in Mecca dates back to the 1510s. The beverage was in Turkey by the 1530s. It appeared in Europe circa 1515-1519 and was introduced to England by 1650. By 1675 the country had more than 3,000 coffee houses, and coffee had replaced beer as a breakfast drink.
