Osoyoos noun3 •Ellipsis of Osoyoos Lake: a lake in the Okanagan Valley, in southernmost British Columbia, Canada. •Ellipsis of Osoyoos Desert: a desert in the Okanagan Valley, in southernmost British Columbia, Canada. •Ellipsis of Osoyoos Indian Reserve: an Indian reserve in the Okanagan Valley, in southernmost British Columbia, Canada.
