SINCE 1828

An Encyclopædia Britannica Company

bird's–foot trefoil

play

noun \ˈbərdz-ˌfu̇t-\

Definition of bird's–foot trefoil

: a yellow-flowered European herb (Lotus corniculatus) of the legume family that has claw-shaped pods and is widely grown for forage and for erosion control

See bird's–foot trefoil defined for kids

First Known Use of bird's–foot trefoil

1701

Seen and Heard

What made you want to look up bird's–foot trefoil? Please tell us where you read or heard it (including the quote, if possible).

show

WORD OF THE DAY

akimbo

play

set in a bent position

Words at Play

alt-59775cb5d7779

Words We're Watching: 'Aquafaba'

Don't dump out the bean water just yet...

Words About Word Play

Don't just eat your words—play with them!

alt-596f95fe451e7

'Drought' & 'Drouth' Take Us Back In Time

A variant spelling with a long history

alt-59721dd897313

The 'Best' Way to Sign Off On An E-mail

Give them your best

Ask the Editors

video-title-words-of-the-year-1066

Words of the Year: 1066

Or, Why Pig Meat is Called 'Pork' and Cow Meat is Called 'Beef'

How Often Is 'Biweekly'?

Don't get us started on 'bimonthly'

video-irregardless-grammar-peeve-blend-of-the-synonyms-irrespective-and-regardless

Irregardless

It is in fact a real word (but that doesn't mean you should use it).

video-moose-goose-weird-plurals

Weird Plurals

One goose, two geese. One moose, two... moose. What's up with that?

Word Games

The Emoji Quiz

Think you’re an emoji 👓 expert? Let’s see 🤔

Take the quiz

A Game of Thrones Word Quiz

In the Game of Thrones quiz, you learn some new vocabulary. (It’s quite safe, really. You will not die.)

Take the quiz

Name That Thing

Name That Thing

Test your visual vocabulary with our 10-question challenge!

Take the quiz

Syn City

Build a city of skyscrapers—one synonym at a time.

Play the game