• Primary abrogator
• Primary accreditee
• Primary achylia
• Primary addend
• Primary addressee
• Primary advocator
• Primary agalactia
• Primary aim
• Primary aldosteronism
• Primary amender
• Primary amide
• Primary amine
• Primary amylamine
• Primary amyloidoses
• Primary amyloidosis
• Primary aspermatism
• Primary assignee
• Primary auxochrome
• Primary awarder
• Primary beneficiary