(marine biology) A disease of starfish and several other echinoderms appearing sporadically, causing mass mortality of those affected.

plural of sea-star wasting disease

(informal) A taxon that exists only to classify organisms that do not fit anywhere else, being either paraphyletic or polyphyletic and therefore not considered valid under modern rules of taxonomy.

plural of wastepaper

A barren stretch of ground; wasteland.

plural of wasteland

(mechanical engineering, automotive, aviation) A valve that allows exhaust gases to bypass an engine's turbocharger, in order to keep from overspeeding the turbocharger rotor or driving the boost pressure high enough to risk engine knocking or detonation.

plural of wastegate

(transitive, intransitive) To make or become waste (i.e. barren, dejected, dismal, feeble, or sickly) or wasted

Without waste.