CORNSTARCH Meaning of CORNSTARCH in English corn ‧ starch /ˈkɔːnstɑːtʃ $ ˈkɔːrnstɑːrtʃ/ BrE AmE noun [uncountable] American English ↑ cornflour Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012