hypabyssal

[ hip-uh-bis-uh l, hahy-puh- ]
/ ˌhɪp əˈbɪs əl, ˌhaɪ pə- /

adjective Geology.

(of an igneous rock) intermediate in texture between coarse-grained intrusive rocks and fine-grained extrusive rocks.
noting any of various minor intrusions, as dikes and sills, that have crystallized under conditions intermediate between plutonic and extrusive.

Origin of hypabyssal

First recorded in 1890–95; hyp- + abyssal

British Dictionary definitions for hypabyssal

hypabyssal
/ (ˌhɪpəˈbɪsəl) /

adjective

(of igneous rocks) derived from magma that has solidified at shallow depth in the form of dykes, sills, etc

Word Origin for hypabyssal

C19: from hyp- + -abyssal