(medicine) A small protein fragment present in the blood after a blood clot is degraded by fibrinolysis, used in the diagnosis of deep vein thrombosis, pulmonary embolism, etc.

(video games) Abbreviation of kill-to-death ratio.

Dolce and Gabbana

simple past tense and past participle of 404

(Internet) Abbreviation of Internet Draft.

(Internet slang) A habitual poster on the /d/ - Hentai/Alternative board on 4chan; a member of the /d/ community.

Alternative form of D-dimer.

plural of D-dimer

(modal, auxiliary verb, colloquial) Had best.

(US, slang) One thousand dollars.