noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A style of self-service restaurant or cafeteria where customers can select from various food items without waiting in a queue. attributive, uncountable
2. 2
   In scuba diving, the situation where the diving regulator continues to supply air instead of cutting off the supply when the diver stops inhaling. uncountable

Etymology

From free + flow.

Related phrases

diving regulatorscuba divingself service

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