Definitions for deficit

(the property of being an amount by which something is less than expected or required; "new blood vessels bud out from the already dilated vascular bed to make up the nutritional deficit")

(a deficiency or failure in neurological or mental functioning; "the people concerned have a deficit in verbal memory"; "they have serious linguistic deficits")

((sports) the score by which a team or individual is losing)

(an excess of liabilities over assets (usually over a certain period); "last year there was a serious budgetary deficit")