See Also: Renounceable right(finance)
Non-renounceable rights(finance)
retinal rod(medicine)
retinal(2)(dictionary)
retinal(1)(dictionary)
Retinal(health)
Retinal(medicine)
11-cis-retinal(medicine)
retinal fold(medicine)
retinal embolism(medicine)

Renounceable right (finance) and Retinal (medicine)


Renounceable right (finance)


An offer issued by a corporation to shareholders to purchase more shares of the corporation's stock (usually at a discount).





Retinal (medicine)


retinal


1. <anatomy> Pertaining to the retina.

2. <biochemistry> The aldehyde of retinol, derived by the oxidative enzymatic splitting of absorbed dietary carotene and having vitamin A activity. In the retina, retinal combines with opsins to form visual pigments. One isomer, 11 cis retinal combines with opsin in the rods (scotopsin) to form rhodopsin or visual purple. Another, all trans retinal (trans r.), visual yellow, xanthopsin) results from the bleaching of rhodopsin by light, in which the 11 cis form is converted to the all trans form. Retinal also combines with opsins in the cones (photopsins) to form the three pigments responsible for colour vision.