Sub-aqueous
adj
adj ·Rare ·Advanced level
Definitions
Adjective
- 1 Alternative form of subaqueous. alt-of, alternative, not-comparable
"The tunnel is 4 miles 628 yd. long, and is the longest tunnel on a British main-line railway, and the longest sub-aqueous tunnel in the world."
Example
More examples"The tunnel is 4 miles 628 yd. long, and is the longest tunnel on a British main-line railway, and the longest sub-aqueous tunnel in the world."
Etymology
From sub- + aqueous.
More for "sub-aqueous"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.