Definition of subtriple in US English:

subtriple

adjective

  • Mathematics. Designating a proportion or ratio of one to three; equal to one third of a quantity or number.

Origin

Late 16th century; earliest use found in Henry Billingsley (d. 1606), merchant and translator. From post-classical Latin subtriplus that is one third of a quantity or number from sub- + triplus.

Pronunciation

subtriple

/ˌsʌbˈtʌɪtl/