underfloor

adj, noun — 2 senses

underfloor

adj

Etymology From under- + floor.

1

Located beneath the floor.

  • The ride quality is pure HST - you have a smoother ride than on any underfloor DMU, aided by less intrusive noise. Sitting at the end of the coaches (and thus over the bogies) is obviously that bit bouncier, but in the centre of the trailer cars it's lovely - and much better than so many new trains such as Voyagers or Class 180s... in fact, anything with those dreaded underfloor engines.2019 October 23, Pip Dunn, “The next king of Scotland”, in Rail, page 54:
Derived terms
underfloor heating

underfloor

noun

Etymology From under- + floor.

1

A layer of flooring beneath the main floor surface.

Synonyms
subfloor

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.