Olmo . ( Of the lat. )( ulmus ). 1. m. family tree of the Ulmáceas, which grows to the height of 20 m with trunk robust, right, of coarse, cracked, bark Cup wide and thick, leaves elliptic or trasovadas, sawn by the margin, rough and hairless above, smooth and hairy on the undersides and green on both sides, early, reddish-white flowersat hacecillos on the branches, and dried fruits, with an oval seed, crushed, membranous in his outline, green at first yellowish wing later, rapid development. It is full of Spain, good shade and excellent wooden tree.