D defs.my
Entry 1 sense Webster, 1913

Subglacial

· Sub·gla·cial · IPA /ˌsʌbˈɡleɪ.ʃ(ə)l/
01 a. Pertaining or belonging to the under side of a glacier; being beneath a glacier; as, subglacial streams.
  1. 1.
    Pertaining or belonging to the under side of a glacier; being beneath a glacier; as, subglacial streams.