a protective glove worn in baseball by the catcher or first baseman ; mitten - a covering for the hand, differing from a glove in having no divisions for the fingers, but provided with a separate receptacle for the thumb; worn either for warmth, or (e.g. by hedgers and other workmen) to protect the hand from injury or pain in handling something. Also (now dial.: see Eng. Dial. Dict.) applied to a thick winter glove.