decibel

名词 n.
中文释义
美 /ˈdɛsɪbɛl/|/ˈdɛsɪbəl/

英文释义

名词 n.
  1. A common measure of intensity ratio (e.g. for sound) that is one tenth of a bel on the logarithmic intensity scale. It is defined as dB = 10 log₁₀(P₁ / P₂), where P₁ and P₂ are the relative intensities.

词形变化

decibels plural

词源

Etymology tree
English deci-
English bel
English decibel
From deci- + bel.
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