deci-; 10^-1
SI prefix meaning one-tenth (10⁻¹), used in metric units such as デシリットル (deciliter) and デシベル (decibel).
from French
This measuring cup can measure up to 1 deciliter.
The unit of noise is expressed in decibels.
deciliter; dl
From French 'déci-', ultimately from Latin 'decimus' meaning 'tenth'. Adopted as an SI prefix in Japanese.