noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The condition of being pyramidal in form or structure. uncountable
2. 2
   A group of abnormalities caused by damage to the pyramidal tract. uncountable

Etymology

From pyramidal + -ism.

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