资料来源 : Webster's Revised Unabridged Dictionary (1913)
Third \Third\, n.
1. The quotient of a unit divided by three; one of three
equal parts into which anything is divided.
2. The sixtieth part of a second of time.
3. (Mus.) The third tone of the scale; the mediant.
4. pl. (Law) The third part of the estate of a deceased
husband, which, by some local laws, the widow is entitled
to enjoy during her life.
{Major third} (Mus.), an interval of two tones.
{Minor third} (Mus.), an interval of a tone and a half.