D defs.my
Entry 1 sense Webster, 1913

Decrescendo

· De·cres·cen·do · IPA /ˌdiːkɹɪˈʃɛndəʊ/
01 a. & adv. With decreasing volume of sound; -- a direction to performers, either written upon the staff (abbreviated Dec., or Decresc.), or indicated …
  1. 1.
    With decreasing volume of sound; -- a direction to performers, either written upon the staff (abbreviated Dec., or Decresc.), or indicated by the sign.(Mus.)