cyanolaben.
/ˈsʌɪənəʊˌleɪb/ Physiology.
A blue-sensitive pigment present in the cones of the retina. Cf. chlorolabe n., erythrolabe n.
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the world > life > biology > substance > pigment > [noun] > types of
schweinfurt green1852
phycocyan1866
phycocyanogen1881
thiochrome1935
chlorolabe1958
cyanolabe1958
the world > life > the body > sense organ > sight organ > parts of sight organ > [noun] > retina > other parts of retina
macula1670
fundus1682
yellow spot1798
macula lutea1818
ora serrata1833
corresponding points1841
identical points1841
blind spot1864
fixation-point1890
cyanolabe1958
1958 W. A. H. Rushton in Nature 13 Sept. 691/1 Fig. 2 shows the results of partial photolysis of the normal fovea using red and green lights. This reveals two distinct pigments. One is the pigment of the protanope but in rather small amount; the other is a pigment which absorbs maximally at about 590 mμ and predominates. This latter pigment may be named ‘erythrolabe’ (= red taking), the protanope pigment ‘chlorolabe’, and the blue-sensitive pigment which does not here concern us, ‘cyanolabe’.
1983 J. G. Creager Human Anat. & Physiol. xiv. 360/2 Cones that contain erytholabe are most sensitive to red light, those that contain chlorolabe are most sensitive to green light and those that contain cyanolabe are most sensitive to blue light.
This entry has not yet been fully updated (first published 1993; most recently modified version published online June 2018).
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n.1958