Sentence:  The face which emerged was not reassuring. It was blunt and grey, the <WSD>nose</WSD> springing thick and flat from high on the frontal bone of the forehead, whilst his eyes were narrow slits of dark in a tight bandage of tissue. .... 
Meaning of the word marked with <WSD> tags:  A protuberance on the face housing the nostrils, which are used to breathe or smell.