Any interface through which there is no transfer of heat or entropy

(medicine) The set of tissues that bound the thoracic cavity, including the rib cage, fascia, muscles etc.

plural of walk-in

plural of walking cane

(informal, humorous) a power supply which plugs directly to the mains socket, without an intervening cord, and via a cord connects to power the device it is used for

A person who participated in bringing down the Berlin Wall in November 1989.

plural of wall-pecker

(US) A shallow depression denuded of vegetation and potentially muddy, created by the wallowing of hogs.

Petrogale lateralis, a rock wallaby.

plural of walk-up