birds mouth (berdzmouth)

In carp., an interior angle or notch cut acro the grain at the extremity of a piece of timber, for its reception on the edge of another piece. bird's-nest (bėrdz'nest), n. 1. A name popularly given to several plants, from some suggestion of a bird's nest in their form or manner of growth. ( a ) Neottia Nidusavis, a British orchid found in beech woods: so called because of the ma of stout interlaced fibers which form its roots. (b) Monotropa Hyро pitys, a parasitic ericaceous plant growing on the roots of trees in fir woods, the leafle stalks of which resemble a nest of sticks. (c) As plenium Nidus, from the manner in which the fronds grow, leaving a nest-like hollow in the center. (d) The wild carrot, Daucus Carota, from the form of the umbel in fruit. 2. Same as crow's nest. 3. pl. An article of commerce between Java and China, consisting of the gelatinous brackets which the swifts of the family Cypselidæ and Col local i a genus attach to cliffs, and on which they build their nests. These so-called bird's nests consist principal Bird-spider (Avicular i a avicular i a), ly of the inspi ated bird's-nest saliva of the birds, and are much esteemed by the Chinese, who use them in making the well-known bird's-nest soup. - Bird's-nest fungus, any species of fungus belonging to the group Nidulariaceæ, which resemble small nests containing eggs. Also called bird's - nest peziza.