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.
Aim to keep the foliage dry when watering plants to prevent foliar diseases. Kim Toscano, Southern Living, 21 June 2026 One of the most popular ways to use banana peels is to brew old peels in water to make a mild liquid fertilizer or foliar spray. Lauren Landers, The Spruce, 20 June 2026 How to Apply Epsom Salt to Your Plants Epsom salt can be applied as a soil drench (watered into the soil) or as a foliar spray (leaf spray). Sj McShane, Martha Stewart, 13 May 2026 While not thorns, these foliar teeth can take a bite out of those who attempt to cross a thicket of torch aloes. Joshua Siskin, Oc Register, 4 Apr. 2026 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 Jul. 2026.

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