Source : Webster's Revised Unabridged Dictionary (1913)

Mizzle \Miz"zle\, v. i. [imp. & p. p. {Mizzled}; p. pr. & vb. n.
   {Mizzling}.] [See {Misle}, and cf. {Mistle}.]
   1. To rain in very fine drops.

Mizzle \Miz"zle\, n.
   Mist; fine rain.

Source : WordNet®

mizzle
     n : very light rain; stronger than mist but less than a shower
         [syn: {drizzle}]
     v : rain lightly; "When it drizzles in summer, hiking can be
         pleasant" [syn: {drizzle}]