Definition of heaths:
(n) :
A tract of level uncultivated land with sandy soil and scrubby vegetation; heathland.
(n) :
Any small evergreen shrub of the family Ericaceae.
(n) :
(countable) Any butterfly or moth of species:
(n) :
Coenonympha pamphilus, native to Europe, Asia except tropical India and Indochina, and Northern Africa, the small heath
(n) :
Coenonympha tullia, native to Europe, Asia except tropical India and Indochina, and North America, the large heath
(n) :
Melitaea athalia (heath fritillary)