undercloak

noun, verb — 2 senses

undercloak

noun

/ˈʌndə(ɹ)kləʊk/

Etymology From under- + cloak.

1

Business, Construction, Manufacturing A fixed underlayer of tile or fibre cement on a roof, to support the mortar above.

undercloak

verb

Etymology From under- + cloak.

1

Business, Construction, Manufacturing To apply such an underlayer to.

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