crystal [i kr7stl ]     (순위: 3534 - 고2 수준)   뜻  명) 수정, 결정 Mean  A homogenous solid formed by a repeating, three-dimensional pattern of atoms, ions, or molecules and having fixed distances between constituent parts. 파생어 crystalline  [형] crystallize  [동] 예문 1. a crystal set (광석 수신기) 2. Salt forms in crystals. (소금은 결정을 이룬다)