| 释义 |
▪ I. ˈretinoid, a. rare—0.
[f. Gr. ῥητίνη + -oid.]
‘Resin-like, or resiniform; resembling a resin without being such’ (Webster, 1847).
▪ II. retinoid, n. Biochem.|ˈrɛtɪnɔɪd|
[f. retinol2 + -oid.]
Any substance displaying vitamin A activity.
1976M. B. Sporn et al. in Federation Proc. XXXV. 1332/1 Natural forms of vitamin A and synthetic analogs of vitamin A; this entire set of molecules, both natural and synthetic, we shall call retinoids, in a manner analogous to the naming of carotenoids or steroids. 1976Lancet 27 Nov. 1174/1 The value of using the synthetic retinoids in the treatment of these dermatoses lies not only in the excellent therapeutic response but also in the comparative lack of toxicity. 1980Nature 17 Apr. 626/1 Retinoids reduce the saturation density and/or growth rate of many normal and tumorigenic cell lines. |