Sing·ing a. & n. from Sing, v.
 Singing bird. Zool. (a) Popularly, any bird that sings; a song bird. (b) Specifically, any one of the Oscines.
 Singing book, a book containing music for singing; a book of tunes.
 Singing falcon or Singing hawk. Zool. See Chanting falcon, under Chanting.
 Singing fish Zool., a California toadfish (Porichthys porosissimus), called also midshipman; -- so called because it produces a buzzing sound with its air bladder.
 Singing flame Acoustics, a flame, as of hydrogen or coal gas, burning within a tube and so adjusted as to set the air within the tube in vibration, causing sound. The apparatus is called also chemical harmonicon.
 Singing master, a man who teaches vocal music.
 Singing school, a school in which persons are instructed in singing.

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 Chant·ing n. Singing, esp. as a chant is sung.
 Chanting falcon Zool., an African falcon (Melierax canorus or musicus). The male has the habit, remarkable in a bird of prey, of singing to his mate, while she is incubating.

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 Fal·con n.
 1. Zool. (a) One of a family (Falconidæ) of raptorial birds, characterized by a short, hooked beak, strong claws, and powerful flight. (b) Any species of the genus Falco, distinguished by having a toothlike lobe on the upper mandible; especially, one of this genus trained to the pursuit of other birds, or game.
    In the language of falconry, the female peregrine (Falco peregrinus) is exclusively called the falcon.   --Yarrell.
 2. Gun. An ancient form of cannon.
 Chanting falcon. Zool. See under Chanting.

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