the GNU version of the Collaborative International Dictionary of English
adj. Furnished with beams, as the head of a stag.
The Century Dictionary and Cyclopedia
Having beams or horns, having all its antlers put forth, as the head of a stag.
Word Usage
"David Mamet beamed from a crowded aisle at Tuesday night 's Broadway opening of his play "A Life in the Theatre," gripping a neatly wrapped box that contained a rattle — a gift he says he planned to give his brother for dating a younger woman."