macrocrystalline
/ˌmakrəʊˈkrɪstəlʌɪn/ /ˌmakrəʊˈkrɪst(ə)lʌɪn/Crystallography and Pharmacology
adjective
Consisting of or containing crystals which are large enough to be seen without a microscope, or which are relatively large.
Origin
Early 20th century; earliest use found in Webster's New International Dictionary of the English Language. From macro- + crystalline.