phorbin — The parent hydrocarbon of chlorophyll; differs from porphin (porphyrin) in the presence of an isocyclic ring formed by the addition of a two carbon group bridging the 13 and 15 positions of porphin (porphyrin) and by saturation of the 17–18… … Medical dictionary
phorbin — phor·bin … English syllables
chlorophyll — The magnesium complex of the phorbin derivative found in photosynthetic organisms; light absorbing green plant pigments that, in living plants, convert light energy into oxidizing and reducing power, thus fixing CO2 and evolving O2; the naturally … Medical dictionary
phorbide — ˈfȯrˌbīd noun ( s) Etymology: phorbin + ide : phorbin 2 … Useful english dictionary
chlorin — 2,3 Dihydroporphin(e); 2,3 dihydroporphyrin; one of the root structures of the chlorophylls (for structure, see porphyrin). Addition of the two carbon bridge (see structure of chlorophyll) to c. yields phorbin(e); addition of side chains yields… … Medical dictionary
pheo- — 1. Prefix denoting the same substituents on a phorbin or phorbide (porphyrin) residue as are present in chlorophyll, excluding any ester residues and Mg. 2. Combining form meaning gray, dark colored. [G. phaios, dusky] … Medical dictionary
porphin, porphine — The unsubstituted cyclic tetrapyrrole nucleus that is the basis of the porphyrins. SEE ALSO: porphyrins. Cf.:chlorin, phorbin, corrin. SYN: porphyrin … Medical dictionary
phyllin — ˈfilə̇n noun ( s) Etymology: phyll + in : a complex magnesium derivative of a porphyrin or a phorbin the phyllin formed from etioporphyrin … Useful english dictionary
