土壤杆菌属，农杆菌属：根瘤菌科(family Rhizobiaceae)中一属革兰氏阴性需氧、具鞭毛的小杆菌，见于土壤及植物根或茎，此属细菌大多都能使植物茎肥大成瘿
习惯用语Agrobacterium radiobacter
放射形土壤杆菌：临床送检标本中偶能分离到的一种非致病菌- argentoproteinum
- argentum
- argilla
- argillaceous
- arginase
- arginase deficiency
- arginine
- arginine carboxypeptidase
- argininemia
- argininosuccinase
- argininosuccinate
- argininosuccinate(ASA)synthetase(ASAS,ASS)deficiency
- argininosuccinate lyase
- argininosuccinate lyase (ASAL,ASL)deficie-ncy
- argininosuccinate synthetase
- argininosuccinic acid
- argininosuccinicacidemia
- argininosuccinicaciduria
- arginyl
- argipressin
- argon
- Argyll Robertson pupil(sign)
- argyremia
- argyria
- argyriasis