from The Century Dictionary.
- noun A colorless crystalline compound, C20 H14 O5, prepared by the action of zinc dust and sodium hydroxid on fluorescein. It melts at 126° C.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A colorless, amorphous substance which is produced by the reduction of fluoresceïn, and from which the latter may be formed by oxidation.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry A colourless
amorphoussubstance produced by the reductionof fluorescein, and from which the latter may be formed by oxidation.
from Wiktionary, Creative Commons Attribution/Share-Alike License
Cessation of the circulation may be determined by (a) placing a ligature round the base of a finger (Magnus 'test); (b) injecting a solution of fluorescin (Icard's test); (c) looking through the web of the fingers at