Of a bird: having a long bill. Now frequently in the names of birds, esp. waders (cf. long-bill, n.2).

having a broad beak.

having a twisted bill.

Having a spoon-shaped bill. Used in specific names (see quots.).

having a curved bill.

Having a slender bill; tenuirostral.

having a curved beak.

Chiefly in the names of birds: having a broad beak likened to the hull of a boat. Compare boatbill, n. See also compounds.

Having a slender beak.

of or pertaining to the Tenuirostres; also = tenuis, n.

having a broad bill, esp. defining a species of sandpiper.

having a flat beak or snout.

slender-billed.

= planirostrate adj.