ホッキョクグマ Also written ほっきょくぐま, 北極熊 Meanings Noun polar bear (Ursus maritimus) See also: しろくま. Example sentences 北極熊の環境がどのようなものか、ちょっと想像してほしい。Take a moment to imagine what the polar bear's environment is like. Jinuma: Japanese Dictionary · Word lists