Characterized by convexity; protuberant.(adjective)
More than half but less than fully illuminated. Used of the moon or a planet.(adjective)
Having a hump; humpbacked.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "gibbous" in a sentence
"+Cap+ bright yellowish or orange color, 3 to 7 inches broad, convex, then flattened, gibbous, that is, more convex on one side than on the other; viscid, covered with woolly (floccose) scales, which often separate."
"In one sense the likenesses were speaking -- that is, a gibbous balloon proceeded from the mouth of each figure, wherein the following dialogue was indicated."
"Consider the following (from 'Ghost World') which not only features the only - in my knowledge - use of the word 'gibbous' in popular song, but rather beautifully captures a mood:"