dandelion

noun

dan·​de·​li·​on ˈdan-də-ˌlī-ən 

-dē-

: any of a genus (Taraxacum) of yellow-flowered composite herbs with milky sap

especially : one (T. officinale) sometimes grown as a potherb and nearly cosmopolitan as a weed

Illustration of dandelion

Examples of dandelion in a Sentence

Recent Examples on the Web

Use Mulch Wind carries dandelion and other lightweight weed seeds into garden beds. —Lauren Landers, Better Homes & Gardens, 14 June 2025

Within a month, dandelions, ragweed, and yellow nutsedge would start popping up in the now knee-high grasses of New York’s iconic parks. —Sarah Durn, Popular Science, 5 June 2025

To be effective, pre-emergent herbicides must be applied to the soil before dandelion seeds germinate, which occurs when soils warm to about 55 ˚F. Dandelion seeds germinate over a long period of time. —Kim Toscano, Southern Living, 19 Apr. 2025

What’s coming next & when? April 22, 2025 4:00 AM Read Next Boise & Garden City Speed bumps are popping up ‘like dandelions’ around Northwest Boise. —Angela Palermo, Idaho Statesman, 29 May 2025

Word History

Etymology

Middle English dendelyoun, from Anglo-French dent de lion, literally, lion's tooth

First Known Use

14th century, in the meaning defined above

Rhymes for dandelion

• amphitryon
• hawaiian
• ixion
• orion
• procyon
• visayan
• heian
• ion
• lion
• mayan
• scion

Kids Definition

dandelion

noun

dan·​de·​li·​on ˈdan-də-ˌlī-ən 

: any of a genus of yellow-flowered weedy plants related to the daisies

especially : one with long deeply toothed stemless leaves sometimes grown as a potherb

Etymology

from early French dent de lion "dandelion," literally, "tooth of the lion"; dent derived from Latin dens "tooth" — related to dental

Word Origin

Sometimes plants are named for their resemblance, real or imagined, to animal shapes. The dandelion might not be a plant we would be quick to connect with a lion's teeth. And yet, in early French this common plant with its yellow flowers was called dent de lion, meaning literally "tooth of the lion." The dandelion leaves have deep notches along the edges. These make the leaves appear to have a row of sharp triangular teeth. In time the French name came to be spelled and pronounced as one word when it came into English, giving us dandelion today.

Medical Definition

dandelion

noun

dan·​de·​li·​on ˈdan-dᵊl-ˌī-ən 

: any plant of the genus Taraxacum

especially : an herb (T. officinale) sometimes grown as a potherb and nearly cosmopolitan as a weed