Delta

del'ta, n.; pi. -tas, -taz. The Greek letter a triangular tract of land; esp. the space between 2 mouths of a river. (Geol.) Alluvial flats formed about diverging mouths of a river. — Del'toid, a. Like the Greek A; triangular — Deltoid leaf. (Bot.) One of triangular form. — D. muscle. (Anat.) The muscle in the shoulder which moves the arm directly upward.; Delude, de-lud', v. t. To lead from truth or into error, mislead the judgment of; to frustrate or disappoint: to r>olf^,q cheat. - Delu's ion, Uenoia deceive, beguile, -zhun, n. Act of, or state of being, etc.: false belief; error; illusion; fallacy. — Delu's ive, -siv, a. Fitted or tending to mislead. — Delu's ory, -so-ri, a. Apt delude.