triplicate
nounEtymology Early 15th century. From Latin triplicātus, perfect passive participle of triplicō (“to triple”) (see -ate), from tri- (“three”) + plicō (“to fold”). By surface analysis, tri- (“three”) + plicate, analogous with duplicate.
1
The making of three identical copies of something.
- The prime minister is a determined centralist in thrall to a tactless and obsessive aide, Cummings, whose skill seems limited to writing slogans in triplicate.2020 July 20, Simon Jenkins, “Britain deserves better than an Old Etonian Donald Trump”, in The Guardian:
2
Each of a set of three identical objects or copies.
- Among the six bottles, three of them were pumped every 30 minutes and the three others every 60 minutes. This provided a triplicate of each condition (30 or 60 minutes idle time between pumping).2022, Vincent Busigny, François P. Mathon, Didier Jézéquel, Cécile C. Bidaud, Eric Viollier, Gérard Bardoux, Jean-Jacques Bourrand, Karim Benzerara, Elodie Duprat, Nicolas Menguy, Caroline L. Monteil, Christopher T. Lefevre, “Mass collection of magnetotactic bacteria from the permanently stratified ferruginous Lake Pavin, France”, in Environmental Microbiology, volume 24, number 2 (Special Issue: microbe:metal/metalloid interactions), →DOI, pages 721-736: