1. Lasting, open, or operating through the whole night
   "an all-night pharmacy"
   - nightlong, overnight

See also: long

• genus Haemopis
• genus Haemoproteus
• genus Haemulon
• genus Hakea
• genus Halcyon
• genus Haldea
• genus Halenia
• genus Halesia
• genus Haliaeetus
• genus Halicoeres
• genus Halimodendron
• genus Haliotis
• genus Halocarpus
• genus Halogeton
• genus Hamamelidanthum
• genus Hamamelidoxylon
• genus Hamamelis
• genus Hamamelites
• genus Hamelia
• genus Haminoea
• genus Haplopappus
• genus Hardenbergia
• genus Harpia
• genus Harpullia
• genus Harrisia