Informal or abbreviated form sometimes used in medical contexts to refer to the abdomen.
Shortened form of 'abdomen', derived from Latin 'abdomen' (belly, from 'abdo', to hide). The abbreviation is modern medical slang rather than a classical form.
Medical professionals love creating abbreviations, and 'abdom' shows how technical jargon evolves—doctors might say 'check the abdom' in casual conversation, creating a whole informal register of English that's barely written down.
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