electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into s more..electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds(noun.artifact)
the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions (noun.cognition)
get or try to get into communication (with someone) by telephone(verb.communication)