1. (of a bird or animal) having a usually ornamental tuft or process on the head; often used in combination
   - crested, tufted

See also: adorned, decorated

• tetraethyl lead
• tetrafluoroethylene
• tetragon
• tetragonal
• Tetragonia
• Tetragonia expansa
• Tetragonia tetragonioides
• Tetragoniaceae
• Tetragonurus
• tetragram
• Tetragrammaton
• tetrahalide
• tetrahedral
• tetrahedrite
• tetrahedron
• tetrahydrocannabinol
• tetrahymena
• tetraiodothyronine
• tetralogy
• tetralogy of Fallot
• tetramerous
• tetrameter
• tetramethyldiarsine
• tetrametric
• Tetraneuris