a Latin term properly signifying a wing; from a resemblance to which several other things are called by the same name: Thus,

in botany, is used in different senses; sometimes it denotes the hollow between the stalk of a plant and the leaves; sometimes it is applied to the two side-petals of the papilionaceous flowers; others use it for the slender membranaceous expansions found in the stems of plants, thence denominated alated stalks.

in botany, an obsolete name of the helonium. See Helonium.

ALÆ, in anatomy, a term applied to the lobes of the liver, the cartilages of the nostril, &c.

ALÆ, in the Roman art of war, were the two wings or extreme parts of the army drawn up in order of battle.