scis·sor-tailed flycatcher 
(sĭzər-tāld′)
(sĭzər-tāld′)n.
A flycatcher (Tyrannus forficatus) of southern North America and Central America, having a very long forked tail.
- under wraps
- underwrite
- underwriter
- undescended testicle
- undeserved
- undeservedly
- undesigning
- undesirability
- undesirable
- undesirably
- undetermined
- undid
- undies
- undifferentiated
- undignified
- undine
- undiplomatic
- undiplomatically
- undirected
- undiscriminating
- undisposed
- undisputed
- undissociated
- undistinguished
- undisturbed