| a gadget; dingus; thingumbob. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
triplet trip·let (trĭp'lĭt)
n.
Any of three children delivered at the same birth.
A set of three similar objects, such as a compound lens in a microscope formed of three planoconvex lenses.
A unit of three successive nucleotides in a DNA or RNA molecule that codes for a specific amino acid; a codon or anticodon.