zeroth

[ zeer-ohth ]
/ ˈzɪər oʊθ /

adjective

coming in a series before the first: the zeroth level of energy.

Origin of zeroth

First recorded in 1895–1900; zero + -th1

Words nearby zeroth

zero-rate, zero-rated, zero-sum, zero-sum game, zero-zero, zeroth, zeroth law of thermodynamics, zerubbabel, zervan, zervanism, zest

British Dictionary definitions for zeroth

zeroth
/ (ˈzɪərəʊð) /

adjective

denoting a term in a series that precedes the term otherwise regarded as the first term

Word Origin for zeroth

C20: from zero + -th ²