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retinal 中文

EN
视网膜 视黄醛
  • 视黄醛也称维生素A醛,分子式:C20H28O,是視黃醇氧化後的衍生物。
  • 它是由β-胡萝卜素发生氧化断裂生成的。还原得到视黄醇,氧化得到视黄酸。
  • 视黄醛是视紫红质的辅基。视觉细胞内11-顺式视黄醛与视蛋白组成视色素,11-顺式视黄醛吸收光后异构为全反式视黄醛,使视紫红质构象发生变化,启动了对大脑的神经脉冲,从而形成视觉。
retinal
retinal

    Definition of retinal in English Dictionary

  • 名词 (Noun)PLretinalsPREré-SUF-inal
    1. (biochemistry) One of several yellow or red carotenoid pigments formed from rhodopsin by the action of light; retinene.
    2. 形容词 (Adjective)
      1. (ophthalmology) Of or pertaining to the retina.
      2. 更多范例
        1. 用于句中
          • DME was defined as the presence of any retinal thickening or hard exsudates at the posterior pole irrespective of center involvement or ischemic characteristics.
          • We demonstrated that microdensitometric method measures the column of blood in the retinal arterioles.
          • PCO translucent opacities apparently induce erratic light-scatter within the eye, which results in a combination of underilluminated retinal areas and in an increased PSD.
      • 词类阶层 (Part-of-Speech Hierarchy)
        1. 形容词
          • 名词
            • 可数名词
          相关连结:
          1. en retinals
          2. en retinalite
          3. en retinalites
          4. en retinaldehyde
          资料来源: 维基词典
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          Meaning of retinal for the defined word.

          在语法上,这个单字"retinal"是一个形容词。它同时也是一个名词,更具体地来说,是一个可数名词
          明确性: 级别 1
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