Webster's 1913 Dictionary
BIRD'S-FOOT
BIRD'S-FOOT Bird's "-foot `, n. (Bot. )
Defn: A papilionaceous plant, the Ornithopus, having a curved, cylindrical pod tipped with a short, clawlike point. Bird's-foot trefoil. (Bot. ) (a ) A genus of plants (Lotus ) with clawlike pods. L. corniculatas, with yellow flowers, is very common in Great Britain. (b ) the related plant, Trigonella ornithopodioides, is also European.
New American Oxford Dictionary
bird's-foot
bird's-foot ▶noun ( pl. bird's-foots ) a European plant of the pea family, which bears pods shaped like the foot of a bird. ●Ornithopus perpusillus, family Leguminosae.
bird's-foot trefoil
bird's-foot tre foil (also birdsfoot trefoil ) ▶noun a small plant of the pea family with leaves that consist of three leaflets, yellow flowers streaked with red, and triple pods that resemble the feet of a bird. [Lotus corniculatus, family Leguminosae. ]
Oxford Dictionary
bird's-foot
bird's-foot ▶noun ( pl. bird's-foots ) a European plant of the pea family, which bears pods shaped like the foot of a bird. ●Ornithopus perpusillus, family Leguminosae.
bird's-foot trefoil
bird's-foot tref |oil ▶noun a small plant of the pea family which has three-lobed leaves, yellow flowers streaked with red, and triple pods that resemble the feet of a bird. Also called eggs and bacon or Tom Thumb. ●Lotus corniculatus, family Leguminosae.
The Wordsmith Dictionary