1. Of or relating to immunology
   - immunological

See also: immunology

• open-air
• open-air market
• open-air marketplace
• open-and-shut
• open-angle glaucoma
• open-class word
• open-collared
• open-door policy
• open-end credit
• open-end fund
• open-end investment company
• workflow
• workforce
• workhorse
• workhouse
• working
• working agreement
• working capital
• working day
• working dog
• working girl
• working group
• working memory
• working out
• working papers