Webster’s Revised Unabridged Dictionary · 1913
Wheal
Wheal (hwēl), n. [OE. whele, AS. hwele putrefaction, hwelian to putrefy.] A pustule; a whelk. Wiseman.
Wheal, n. [Cf. Wale.]
1. A more or less elongated mark raised by a stroke; also, a similar mark made by any cause; a weal; a wale.
2. Specifically (Med.), a flat, burning or itching eminence on the skin, such as is produced by a mosquito bite, or in urticaria.
Wheal, n. [Cornish hwel.] (Mining) A mine.