无头虫属：裸头科(Linstowiidae)绦虫的一属，寄生于非洲岩狸和啮齿动物。在古巴和中美洲，在人身上已发现有田鼠无头虫(I.arvicanthidis)- antineoplastic
- antineoplaston
- antinephritic
- antineuralgic
- antineuritic
- antineurotoxin
- antineutrino
- antineutron
- antiniad
- antinial
- antinion
- antinociceptive
- antinuclear
- antiodontalgic
- antioncotic
- antiophidica
- antiophthalmic
- antiopsonin
- antiovulatory
- antioxidant
- antioxidase
- antioxidation
- antioxygen
- antipaludian
- antiparallel