Bituminoid is a term used to describe various substances that resemble or are derived from bitumen. Bitumen itself is a thick, tar-like substance that is used in many industrial applications, such as road construction and roofing. Synonyms for bituminoid include asphaltic, bituminous, tarry, and resinous. Asphaltic refers specifically to materials that are made from asphalt, a type of bitumen that is commonly used in road construction. Bituminous refers to substances that contain bitumen or have similar properties. Tarry can describe materials that are dark and viscous, like tar, while resinous is used to describe materials that are sticky or adhesive, similar to tree resin.