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1. An agent, such as yeast, that causes batter or dough to rise, especially by fermentation.
2. An element, influence, or agent that works subtly to lighten, enliven, or modify a whole.
tr.v. leav·ened, leav·en·ing, leav·ens
1. To add a rising agent to.
2. To cause to rise, especially by fermentation.
3. To pervade with a lightening, enlivening, or modifying influence.

[Middle English, from Old French levain, from Vulgar Latin *levāmen, from Latin levāre, to raise; see legwh- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.leavened - made light by aerating, as with yeast or baking powder; often used as a combining form; "leavened bread"; "well-leavened"; "yeast-leavened breads"
unleavened, unraised - made without leavening; "unleavened bread is often simply flour mixed with water"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
فيه خَميرَه


(ˈlevnd) adjective
(negative unleavened) containing yeast to make it rise. leavened bread.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
Yet such was the force of example that the village young men, who had not hastened to enter the gate while no intruder was in the way, now dropped in quickly, and soon the couples became leavened with rustic youth to a marked extent, till at length the plainest woman in the club was no longer compelled to foot it on the masculine side of the figure.
Beyond stretched the flat marshland, its mossy turf leavened with cracks and creeks of all widths, filled also with sea-slime and sea-water.
That grim presence shadows our lives, but who can deny that in that shadow the sense of duty, the feeling of sobriety and responsibility, the appreciation of the gravity and of the objects of life, the earnest desire to develop and improve, have grown and become real with us to a degree that has leavened our whole society from end to end?
Yet in an instant she had changed again to her old expression of merriment leavened with mischief.
15 Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whosoever eateth leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.
Leavened bread is not eaten during the Jewish holiday and the inclusion of the image in an official tweet by Jeremy Corbyn's party - alongside a Star of David and a goblet - led to a barrage of criticism.
The Israelite is forbidden to eat leavened bread or to have it in his possession or household during the Passover season.
Breads leavened with yeast (YC, Y20, Y35, and Y50) had significantly higher specific volumes when compared to breads leavened with baking powder (BPC, BP20, BP35, and BP50).
hammesii staved off mold two to three days longer than bread leavened with yeast alone, the team reported in January in Applied and Environmental Microbiology.
In an effort to improve the health benefits of bread, Korean scientists developed a 100% leavened soybean bread using heat treatment and fermentation.