1. Plural of atabrine; tablets or doses of atabrine, a synthetic antimalarial drug used especially during World War II.
Usage: historical; medical; often used in plural form

Examples

• Soldiers in the Pacific theater were issued atabrines to prevent malaria.
• The medical corps distributed atabrines to all personnel stationed in tropical regions.
• Atabrines were an important antimalarial treatment before modern drugs became available.
• The yellow discoloration of skin was a known side effect of taking atabrines regularly.