[ˈretinəl]
①视网膜的：视网膜所属的；②视黄醛，维生素A醛：饮食中吸收的胡萝卜素经氧化酶裂解而得的物质，具有维生素A的活性。视黄醛在视网膜中与视蛋白相结合，形成视觉色素。其异构体之一11-顺式视黄醛与视杆体中的视蛋白(视暗蛋白)结合，形成视紫质；而另一异构体全反式视黄醛(反式视黄醛，视黄质)则系视紫质经光的作用脱色而成，11-顺式视黄醛遂转化为反式。视黄醛亦可在视锥体中与视蛋白(光视蛋白)结合，形成三种产生色觉的色素。视黄醛又称retinal1和retinene1- abate
- abatement
- abatic
- abbau
- Abbe's flap, operation
- Abbott-Miller tube
- Abbott-Rawson tube
- Abbé's condenser
- Abbé-Zeiss counting cell, counting chamber
- ABC
- ABCD
- abdomen
- abdominal
- abdomin(o)-
- abdominocentesis
- abdominocystic
- abdominogenital
- abdominohysterectomy
- abdominohysterotomy
- abdominoscopy
- abdominoscrotal
- abdominothoracic
- abdominouterotomy
- abdominovaginal
- abdominovesical