phthalein
[ thal-een, -ee-in, fthal- ]
/ ˈθæl in, -i ɪn, ˈfθæl- /
noun Chemistry.
any of a group of compounds formed by treating phthalic anhydride with phenols, from which certain important dyes are derived.
Origin of phthalein
First recorded in 1900–05;
(na)phthale(ne) +
-in2
Words nearby phthalein
phryne,
phrynoderma,
phs,
phse,
phthalate,
phthalein,
phthalic,
phthalic acid,
phthalic anhydride,
phthalin,
phthalocyanine
Example sentences from the Web for phthalein
The phthalein on the day following the second venesection was 45 per cent in two hours.
Arteriosclerosis and Hypertension: |Louis Marshall WarfieldThe phthalein excretion is quite normal and the excretions of salt and nitrogen are also normal.
Arteriosclerosis and Hypertension: |Louis Marshall Warfield
British Dictionary definitions for phthalein
phthalein
/ (ˈθeɪliːn, -lɪɪn, ˈθæl-, ˈfθæl-) /
noun
any of a class of organic compounds obtained by the reaction of phthalic anhydride with a phenol and used in dyes
Word Origin for phthalein
C19: from
phthal-, shortened form of
naphthalene +
-in
Medical definitions for phthalein
phthalein
n.
Any of a group of chemical compounds formed by a reaction of phthalic anhydride with a phenol, from which certain synthetic dyes are derived.
Scientific definitions for phthalein
phthalein
[ thăl′ēn′, thā′lēn′, fthăl′- ]
Any of a group of chemical compounds formed by a reaction of phthalic anhydride with a phenol. They are used to derive certain synthetic dyes.