Lumbus

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Synonym of loin.
  2. 2
    either side of the backbone between the hipbone and the ribs in humans as well as quadrupeds wordnet

Etymology

Learned borrowing from Latin lumbus. Doublet of loin.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.