- prepared for eating according to the dietary laws followed by Hasidic Jews, which differ somewhat from those followed by other observers of kashruth: glatt kosher meat.
- adhering to these laws: a glatt kosher restaurant.
- (loosely) strictly kosher.
Origin of glatt kosher
1950–55; < Yiddish glat literally, smooth, even < Middle High German (German glatt), Old High German: bright, shining; see glad1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018