Mat

not reflecting light; not glossy

a mass that is densely tangled or interwoven

mounting consisting of a border or background for a picture

a foundation (usually on soft ground) consisting of an extended layer of reinforced concrete

the property of having little or no contrast; lacking highlights or gloss

sports equipment consisting of a piece of thick padding on the floor for gymnastic sports

a master's degree in teaching

a small pad of material that is used to protect surface from an object placed on it

a thick flat pad used as a floor covering

twist together or entwine into a confusing mass

change texture so as to become matted and felt-like