Question

The radioactivity was released when they blew off steam from the containment vessel.

Accepted Answer

(transitivehttps://en.wiktionary.org/wiki/Appendix:Glossary#transitive) To venthttps://en.wiktionary.org/wiki/vent, usually, to reduce pressure in a container.

Sentence	The radioactivity was released when they blew off steam from the containment vessel.
Definition	( transitive https://en.wiktionary.org/wiki/Appendix:Glossary#transitive ) To vent https://en.wiktionary.org/wiki/vent , usually, to reduce pressure in a container.

Radioactivity Released Blew Steam Containment Vessel Reduce Pressure