资料来源 : Webster's Revised Unabridged Dictionary (1913)

Halones \Ha*lo"nes\, n. pl. [NL., fr. Gr. ?, ?, a halo.] (Biol.)
   Alternating transparent and opaque white rings which are seen
   outside the blastoderm, on the surface of the developing egg
   of the hen and other birds.