A surname.

A relief valve set to open at a pressure below that at which a container (such as a boiler) would burst. / (figuratively) Any mechanism offering relief from pressure or tension, e.g. emotionally.

(botany) The tissues formed of elongated cells, especially those with pointed or oblique extremities, such as the principal cells of ordinary wood.

On the left side. / Towards the left side. / Towards the political left.