tripling, vbl. n.
(ˈtrɪplɪŋ)
[f. triple v. + -ing1.]
1. The action of the verb triple.
1603 Florio Montaigne (1634) 94 It is a great..wonder for a man to double himselfe; and those that talke of tripling, know not, nor cannot reach unto the height of it. 1630 R. Delamain Grammelogia **j, The doubling, tripling [etc.] of Circles. 1853 Sir W. R. Hamilton Lect. Quarternions ii. 53 Two successive acts, of negatively doubling and negatively tripling, compound themselves into the single act of positively sextupling. |
b. spec. See triple v. 1 c.
1891 Times 26 Oct. 4/3 There is a fair amount of tripling of engines in old vessels ordered. |
2. concr. a. pl. Three children at a birth; triplets.
1858 Lewes Sea-side Stud. 246 This multiplication of individuals from one egg, this production of twins, or triplings, is a constant fact. |
b. Min. A compound crystal made up of three independent individuals; a trilling, trin.
1895 Story-Maskelyne Crystallogr. §157 Such crystals are triple, quadruple, &c. hemitropes (or triplings, fourlings. &c.). |