orthochromatic film[感光] 正色片;正色性胶片;正色胶卷
Orthochromatic erythroblast[细胞] 晚幼红细胞;翻译;正染性成红细胞
orthochromatic normoblast晚幼红细胞
orthochromatic plate定色板;[感光] 正色底片
orthochromatic leukodystrophy正染色脑白质营养障碍
orthochromatic dye正色染料
orthochromatic emulsion正色乳剂;[感光] 正色性乳剂
orthochromatic mm正色胶片
orthochromatic filter正色滤光器;正色性滤光片
ADJ（形容词） of or relating to an emulsion giving a rendering of relative light intensities of different colours that corresponds approximately to the colour sensitivity of the eye, esp one that is insensitive to red light 正色性的 (Sometimes shortened to ortho) [photog] → compare panchromatic