A concrete slab designed with reinforcement to resist the uplift forces created by hydrostatic pressure.

Alternative spelling of transmat

A piece of laboratory apparatus consisting of a flat piece of wire gauze placed on a tripod to give a beaker or flask additional support or to distribute heat more evenly

A doormat with a welcoming message on it. / (by analogy) Any sign or indication of welcome.

Synonym of dance pad

A small square cardboard mat, often with an advertisement for a brewery on it, that is used to rest one's glass on, and to protect the surface of a table or a bar in a pub.

an accumulation of filamentous algae, either freely floating or rolling along the sea bed. / a mass of diatoms etc. covering soft bottoms.

(Britain) A mouse pad.

A protective table mat, usually heat-resistant, for a single setting of plates and dishes.

A waterproof and easily washable sheet used to collect food dropped by a small child while eating, or otherwise to protect easily soiled surfaces.