<p><strong>Noun:</strong></p><ul><li>A person or thing that compresses.</li><li>Anatomy: A muscle that compresses some part of the body.</li><li>Surgery: An instrument for compressing a part of the body.</li><li>A pump or other machine for reducing volume and increasing pressure of gases in order to condense the gases, drive pneumatically powered machinery, etc.</li><li>Electronics: A transducer that produces an output with a range of voltages whose ratio is smaller than that of the range of the input signal.</li></ul><p><strong>End of Response</strong></p>