Definition of bird's-nest
1a brownish or yellowish saprophytic flowering plant of the wintergreen family, with scale-like leaves.
- Two species in the family Monotropaceae (or Pyrolaceae): the yellow bird’s-nest (Monotropa hypopitys) of north temperate regions, and the giant bird’s-nest (Pterospora andromeda) of North America
2 (also bird's-nest fungus) a Eurasian and North American fungus with a small bowl-shaped fruiting body that opens to reveal egg-shaped organs containing the spores.
- Family Nidulariaceae, class Gasteromycetes, including the common bird’s-nest (Crucibulum laeve)