厌氧螺菌属：拟杆菌科(Bacteroidaceae)中一属革兰氏阴性厌氧性螺旋状杆菌，以双端鞭毛活动，见于狗的口腔和结肠中；只有一个菌种：产琥珀酸厌氧螺菌(A. succiniciproducens)- hydroencephalocele
- hydroflumethiazide
- hydrofluoric acid
- hydrogel
- hydrogen
- hydrogenate
- hydrogenize
- hydrogenoid
- Hydrogenomonas
- hydrogymnastic
- hydrogymnastics
- hydrohematonephrosis
- hydrohepatosis
- hydro-; hydr-
- hydrohymenitis
- hydrokinesitherapy
- hydrokinetic
- hydrokollag
- hydrol
- hydrolabile
- hydrolability
- hydrolase
- hydrology
- Hydrolose
- hydro-lyase