Whatcom noun5 •Ellipsis of Lake Whatcom: a lake in Whatcom County, Washington, United States. •Ellipsis of Whatcom Falls: a waterfall in Bellingham, Whatcom County, Washington, United States. •Ellipsis of the Whatcom Creek: a creek in Whatcom County, Washington, United States. •Ellipsis of Whatcom Peak: a mountain in North Cascades National Park, Washington, United States. •Ellipsis of Whatcom Glacier: a glacier in Whatcom Peak, North Cascades National Park, Washington, United States.