Acustic child Share definition Flag Acuastic child is defined as someone who has mastered all of acuastic instruments. Example of an acustic child is. Beethoven was an excellent musician. But he was not an acuastic child Acustic child by TrueMeanings.com.uk April 26, 2017 0 0 Get merch Get the Acustic child mug. Buy Now — $32.95 See more merch