Lewis & Short

2. compressus, ūs, m. [comprimo], a pressing together, compression (only in abl. sing.).

  1. I. In gen.: semen tepefactum vapore et compressu suo diffindit (terra), * Cic. Sen. 15, 51: pennarum, Plin. 11, 28, 34, § 98.
  2. II. Esp., an embracing, copulation, Plaut. Am. prol. 109; id. Ep. 4, 1, 15; id. Truc. 2, 6, 17; Ter. Ad. 3, 4, 29; Macr. S. 5, 19.