0 present participle of sniff
1 to smell something by taking air in through your nose:
Dogs love sniffing each other.
Dogs are sometimes used at airports to sniff out (= find by smelling) drugs in people's luggage.
He was expelled from school for sniffing glue (= taking in the gas from glue because of the feelings of pleasure that this gives).
You're sniffing a lot - do you have a cold?
[ + speech ] "They didn't even serve wine at dinner!" she sniffed.
He sniffed the flowers.
There are many cases already of dogs sniffing out human disease that have been reported in this section.
The report suggests that for centuries doctors have been able to tell if a wound is infected simply by sniffing.
We were shoulder to shoulder around the rectangular table, sniffing and snuffling as we wrote, and reread, and continued writing.
