lachrymatory gas

"What he was proposing to use in Mesopotamia was lachrymatory gas, which is essentially tear gas, not mustard gas."

Just before we reached Albert we passed through a cloud of lachrymatory gas, which made me weep copious tears for nearly half an hour.

Opening my door, I encountered the not unpleasant smell of lachrymatory gas.

As they moved in, many smelt for the first time the curious fragrant odour of lachrymatory gas, which seemed to come from the flowers of some wayside garden until the pricking and watering at the eyes proved otherwise.

In addition to high explosive he now began to send over for the first time "lachrymatory" gas shells, having a sweet smell and doing little harm except to make our eyes water.