Adjective
gabbroic (comparative more gabbroic, superlative most gabbroic)
Of, pertaining to, or containing gabbro
Due to its variant nature, the term "gabbro" may be applied loosely to a wide range of intrusive rocks, many of which are merely "gabbroic". Source: Internet
Long belts of gabbroic intrusions are typically formed at proto-rift zones and around ancient rift zone margins, intruding into the rift flanks. Source: Internet