headcase

== English == === Alternative forms === head-case, head case === Etymology === From head +‎ case. === Pronunciation === === Noun === headcase (countable and uncountable, plural headcases) (informal, derogatory, countable) A mentally unbalanced, unpredictable person, especially one who displays aggressive behavior. (genetics, uncountable) A genetic sequence that inhibits terminal branching of the trachea and regulates dendrite pruning. Synonym: hdc === Anagrams === case head