Definition of tropaeolin in English:

tropaeolin

(also tropaeoline, tropeolin)

noun trə(ʊ)ˈpiːəlɪn

Chemistry

Any of a group of orange and yellow sulphonated azo dyes, some of which are used as pH indicators. Frequently with capital letter, numeral, etc. as a postpositive, denoting a particular dye of this group, as "tropaeolin O".

Origin

Late 19th century; earliest use found in Chemical News. From tropaeolum) + -in, after German Tropäolin. Apparently so called from the resemblance of the colours of the dyes to those of the flowers of some species of Tropaeolum.

Definition of tropaeolin in US English:

tropaeolin

(also tropaeoline, tropeolin)

nountrə(ʊ)ˈpiːəlɪn

Chemistry

Any of a group of orange and yellow sulphonated azo dyes, some of which are used as pH indicators. Frequently with capital letter, numeral, etc. as a postpositive, denoting a particular dye of this group, as "tropaeolin O".

Origin

Late 19th century; earliest use found in Chemical News. From tropaeolum) + -in, after German Tropäolin. Apparently so called from the resemblance of the colours of the dyes to those of the flowers of some species of Tropaeolum.

词汇	tropaeolin
释义	Definition of tropaeolin in English: tropaeolin (also tropaeoline, tropeolin) noun trə(ʊ)ˈpiːəlɪn Chemistry Any of a group of orange and yellow sulphonated azo dyes, some of which are used as pH indicators. Frequently with capital letter, numeral, etc. as a postpositive, denoting a particular dye of this group, as "tropaeolin O". Origin Late 19th century; earliest use found in Chemical News. From tropaeolum) + -in, after German Tropäolin. Apparently so called from the resemblance of the colours of the dyes to those of the flowers of some species of Tropaeolum. Definition of tropaeolin in US English: tropaeolin (also tropaeoline, tropeolin) nountrə(ʊ)ˈpiːəlɪn Chemistry Any of a group of orange and yellow sulphonated azo dyes, some of which are used as pH indicators. Frequently with capital letter, numeral, etc. as a postpositive, denoting a particular dye of this group, as "tropaeolin O". Origin Late 19th century; earliest use found in Chemical News. From tropaeolum) + -in, after German Tropäolin. Apparently so called from the resemblance of the colours of the dyes to those of the flowers of some species of Tropaeolum.
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