MICROSCOPICAL Scrabble 23 Words With Friends 29 Definition adjective of or relating to or used in microscopy. — synonyms: microscopic adjective visible under a microscope. — synonyms: microscopic adjective so small as to be invisible without a microscope. — synonyms: microscopic See all 563 words you can make from MICROSCOPICAL → 13-letter words Words starting with M Words ending with L ← Unscramble different letters