dovetail

dovetail is a   Noun

Definition:

[1] A flaring tenon, or tongue (shaped like a bird`s tail spread), and a mortise, or socket, into which it fits tightly, making an interlocking joint between two pieces which resists pulling a part in all directions except one. Dovetail molding (Arch.), a molding of any convex section arranged in a sort of zigzag, like a series of dovetails. -- Dovetail saw (Carp.), a saw used in dovetailing.

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