Definition of "foliar" [fo•li•ar]

• Of or relating to a leaf or leaves. (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.

• "Wondering if a hidden cause of what appeared to be moisture stress might actually be nutrient deficiencies, I tried spraying liquid fertilizer directly on these gnarly leaves, a practice called foliar feeding."
• "Gardener's notes: feeding your rosesRoses appreciate aspring feed and mulch, but the disease resistance and recurrent blooming of the English roses is enhanced by foliar feeding in the growing season."
• "Uncle Tom's Rose Tonic contains potassium phosphite and has good fungicidal properties, while SB Plant Invigorator is a foliar feed with fungicidal and pesticidal properties."