beamful adjective 1noun 1forms 3 adjective1 •Beamy; radiant; luminous.Let each succeeding page Still boast those charms, and luminate the age; So shall thy beamful fires with light divine, Rise to the sphere, and there triumphant shine. — 1929 noun1 •A quantity in a beam (of wood, of light, etc)Phialai of similar size would be divided into convenient " beamfuls " or weighing-lots. — 1944 formsbeamfuls · more beamful · most beamful