foliar

adjective

fo·​li·​ar ˈfō-lē-ər How to pronounce foliar (audio)
: of, relating to, or applied to leaves
foliar sprays
foliar diseases

Examples of foliar in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
As a member of the rose family, flowering quince is susceptible to a variety of foliar diseases, but modern varieties are disease resistant as well as thornless. Kim Toscano, Southern Living, 28 Feb. 2026 Trimming is best done during dry periods to avoid spreading foliar diseases. Luke Miller, Better Homes & Gardens, 17 Feb. 2026 Just be realistic about expectations and don’t waste time trying to control the foliar diseases. Paul Cappiello, The Courier-Journal, 1 July 2022 Use liquid fertilizer as a quick fix foliar spray for plants showing signs of nutrient deficiency. Nan Sterman, San Diego Union-Tribune, 4 June 2022 See All Example Sentences for foliar

Word History

Etymology

French foliaire, from Latin folium leaf + French -aire -ar

First Known Use

circa 1859, in the meaning defined above

Time Traveler
The first known use of foliar was circa 1859

Browse Nearby Words

Cite this Entry

“Foliar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/foliar. Accessed 5 Mar. 2026.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster