Third-person singular simple present indicative form of postmodify

(attributive) A six-channel surround sound audio system, having five full-bandwidth channels and one low-frequency effects channel.

(US) One who plays in a sandlot. / (US) A supporter of the working-class, anti-Chinese political views of Denis Kearney in 19th-century California.

(organic chemistry) The compound trifluoroacetaldehyde, CF₃-CHO