Pronunciation: ' ī -s ə - ˌ pak
Function: noun
Etymology: is- + -pach (fr. Greek pachys thick) ― more at PACHYDERM
Date: circa 1918
: an isoline that connects points of equal thickness of a geological stratum formation or group of formations
Pronunciation: ' ī -s ə - ˌ pak
Function: noun
Etymology: is- + -pach (fr. Greek pachys thick) ― more at PACHYDERM
Date: circa 1918
: an isoline that connects points of equal thickness of a geological stratum formation or group of formations
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012