num·mu·lar \ˈnəmyələ(r)\adjective Etymology: French nummulaire, from Latin nummulus (diminutive of nummus coin) + French -aire -ar 1.: circular or oval in shape < nummular lesions > 2. a.: marked by circular or oval lesions < nummular dermatitis > b.: forming circular or oval drops < nummular sputum >