HHAS

AcronymDefinition
HHASHi-Hat Appreciation Society (Europe)
HHASHertfordshire Hearing Advisory Service (UK)
HHASHumane Haven Animal Shelter (Bolingbrook, IL)
HHASHistoric Houses Association for Scotland (Edinburgh, Scotland, UK)
HHASHypothalamo-Hypophyseal-Adrenal System
HHASHypothalamo-Hypophyseal-Adrenocortical System
HHASHypothalamo-Hypophyseal Antidiuretic System