cyanamid cya·na·mid US/saɪˈænʌmɪd/ uncommon archaic noun 1. a weak soluble dibasic acid (the parent acid of cyanamide salts) Synonymscyanamide Related words Word family cyanamide Broader terms acid WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.