Added 8 October 2026
zeroth
/ˈzɪəɹəʊθ/ adjective
adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about zeroth at Wordnik → Where our words come from →
-
In the initial position in a sequence whose elements are numbered starting at zero; the ordinal number corresponding to zero.
The zeroth order polynomial approximation is constant.
-
Corresponding to a position preceding the first.
A and C are in equilibrium following the Zeroth Law of Thermodynamics.
Origin
From zero + -th (ordinal suffix).
From Wiktionary, via Kaikki.org (CC BY-SA)