noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The strengthened vein down the middle of a flower petal or simple leaf or leaflet.
2. 2
   the vein in the center of a leaf wordnet
3. 3
   The continuation of the petiole of a pinnately compound leaf around which the leaflets attach.

Synonyms

All synonyms

midveinmiddle ribmidnervemidnervemidveinrachis

Etymology

mid- + rib

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