fine-grain \ˈ ̷ ̷| ̷ ̷\adjective 1.: producing images of low graininess so that considerable enlargement without undue coarseness is permitted — used of a photographic developer 2.alsofine-grained\ˈ ̷ ̷| ̷ ̷\: characterized by comparatively fine graininess — used of a photographic image or photographic emulsion