καταπύκν-ωσις · katapykn-ōsis — LSJ
condensation (v. καταπυκνόω II), τοῦ ἡδομένου densification, solidification of pleasure by filling in unoccupied gaps in time and completing the penetration of the organism, Epicur. Fr. 432: pl., Dam. Pr. 354.
in Music, close packing of the intervals in a scale, Aristox. Harm. p.7 M., Nicom. Harm. 11.