crystallographic symmetry Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. the balanced and orderly arrangement of atoms in a crystal. Example Sentence The study of minerals often involves understanding their crystallographic symmetry. Synonyms geometric symmetry; atomic arrangement; molecular structure Antonyms asymmetry; imbalance Hear It! Say It! Write It! crystallographic symmetry Switch to cursive Start Share with your friends: