Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
noun
A mentally unbalanced, unpredictable person, especially one who displays aggressive behavior.
Definition source: English Wiktionary via Wiktextract
Usage: countable, derogatory, informal
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
A genetic sequence that inhibits terminal branching of the trachea and regulates dendrite pruning.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: biology, genetics, medicine, natural-sciences, sciences
No example sentence was provided for this meaning.
Synonyms: hdc
Antonyms: none provided
History
From head + case.
