morning star

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A planet, especially Venus, visible in the east just before or at sunrise.

from The Century Dictionary.

• noun See star.
• noun A weapon consisting of a ball of metal, usually set with spikes, either mounted upon a long handle or staff, usually of wood and used with both hands, or slung to the staff by a thong or chain. Also called holy-water sprinkler. Compare warflail.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The planet Venus as observed in the eastern sky around dawn.
• noun less commonly The planet Mercury as observed in the eastern sky around dawn.
• noun military A weapon consisting of a heavy ball set with spikes attached rigidly to a staff, in contrast to a flail.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a planet (usually Venus) seen just before sunrise in the eastern sky