Home›Browse›N›no-see-umno-see-umOur editors are putting together more complete content — check back in about 20 minutesno-see-umno-see-um — nounnoun1. a very small biting fly that is hard to see1.nounDefinitiona very small biting fly that is hard to seeExampleI got bitten by no-see-ums while walking near the lake.