leather āļāļ·āļāļāļ°āđāļĢ leather āļāļ·āļāļāļ°āđāļĢ The dressed or tanned hide of an animal, usually with the hair removed.Any of various articles or parts made of dressed or tanned hide, such as a boot or strap.The flap of a dog's ear. To cover wholly or in part with the dressed or tanned hide of an animal.Informal To beat with a strap made of hide.Made of, relating to, or resembling dressed or tanned animal hide.Slang Of, relating to, or patronized by people who dress in leather clothing primarily to indicate a preference for sadomasochistic sex: leather types; a leather bar.