Definition of lucifer

• n. - The planet Venus, when appearing as the morning star; -- applied in Isaiah by a metaphor to a king of Babylon.
• n. - Hence, Satan.
• n. - A match made of a sliver of wood tipped with a combustible substance, and ignited by friction; -- called also lucifer match, and locofoco. See Locofoco.
• n. - A genus of free-swimming macruran Crustacea, having a slender body and long appendages.