Bulb-out

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A traffic calming measure that widens the sidewalk for a short distance.
  2. 2
    A round area of pavement that protrudes from one side of a road to accommodate turning vehicles with a wide turning circle.

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