Como dizer "Gás lacrimogêneo" em inglês

Tear gas, formally known as a lachrymatory agent or lachrymator (from lacrima meaning "a tear" in Latin), is a non-lethal chemical compound that stimulates the corneal nerves in the eyes to cause tearing, pain, and even blindness. Common lachrymators include OC, CS, CR, CN, nonivamide, bromoacetone, phenacyl bromide, xylyl bromide and syn-propanethial-S-oxide (from onions). Lacrymators often share the structural element Z=C-C-X, where Z indicates carbon or oxygen, and X indicates bromide or chloride. Fonte: http://en.wikipedia.org/wiki/Tear_gas

Exemplos:

• BBC News - Tear gas fired at Egyptian protesters
• Egypt Police Use Tear Gas to Break Up Cairo Protest - Bloomberg
• Police fill square with tear gas as Egypt clashes continue - Jpost