doublet
- n a man's close-fitting jacket; worn during the Renaissance
- Made up of four lenses (one of them a "doublet" of two lenses cemented together) separated by three sealed air spaces, the tiny, high-powered units not only provide magnification .
- As Romeo, in Romeo and Juliet, he appears in the medieval doublet and hose, which offer few opportunities to the tailor who would drape the mishaps of nature in kindly camouflage.
- With doublet glasses she breezed through elementary school.