The Collaborative International Dictionary
Janus cloth
Janus \Ja"nus\, n. [L. See January.] (Rom. Antiq.)
A Latin deity represented with two faces looking in opposite
directions. Numa is said to have dedicated to Janus the
covered passage at Rome, near the Forum, which is usually
called the Temple of Janus. This passage was open in war and
closed in peace.
--Dr. W. Smith.
Janus cloth, a fabric having both sides dressed, the sides being of different colors, -- used for reversible garments.