A crossgrained protuberance; a nodule; a boss or projection.
A contorted knot in wood.
A lined or crossgrained pattern of ridges or indentations rolled or pressed into a part for grip.
To roll or press a pattern of ridges or indentations into a part for grip.
Any of the prefixes used in Hungarian notation.
A type of deformed growth occurring on the skin caused by the human papillomavirus (HPV).
Any similar growth occurring in plants or animals, such as the parotoid glands in the back of toads.