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Molisch's test


biochemical indicator of the presence of carbohydrates in a solution; if carbohydrates are present a violet ring is formed by reaction with alpha-naphthol in the presence of sulfuric acid


substance noun (substance and materials)


Molisch's tests

Original source:

Princeton WordNet


alpha-naphthol test | Molisch reaction | Molisch test

Definition references


Molisch's test

a sensitive chemical test for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid to produce an aldehyde, which condenses with two molecules of phenol, resulting in a red- or purple-colored compound. The test ... (39 of 209 words, 1 image)

en​.wikipedia​.org​/wiki​/Molisch's test

Collins Dictionary:

indicator | economic indicator [synonym, sense-specific] | blinker [synonym, sense-specific] | dial gauge [synonym, sense-specific] | indicator species [synonym, sense-specific]

something that provides an indication, especially of trends | a device to attract attention, such as the pointer of a gauge or a warning lamp | an ... (25 of 696 words, 11 definitions, 10 usage examples, pronunciation)


Oxford Dictionary:

indicator | indicator species

a thing that indicates the state or level of something | a device providing specific information on the state or condition of something, in particular ... (24 of 205 words, 7 definitions, 7 usage examples, pronunciation)



indicator | pointer [synonym, sense-specific] | tracer [synonym, sense-specific] | gauge [synonym, sense-specific] | hand [synonym, sense-specific] | index [synonym, sense-specific] | needle [synonym, sense-specific] | dial [similar, sense-specific] | face [similar, sense-specific]

one that indicates: as ; an index hand (as on a dialect); "pointer" ; ... | a substance (as litmus) used to show visually (as by change of color) the ... (29 of 193 words, 4 definitions, pronunciations)


Macmillan British Dictionary:

indicator [countable] | indicators [plural]

something that shows you what condition something is in | a piece of equipment that shows information | [British] one of the lights on a car that ... (25 of 139 words, 4 definitions, 5 usage examples, pronunciation)


American Heritage Dictionary:


One that indicates, especially: A pointer or an index. | An instrument used to monitor the operation or condition of an engine, furnace, electrical ... (23 of 121 words, 6 definitions, pronunciation)


Random House Dictionary:


a person or thing that indicates. | a pointing or directing device, as a pointer on the dial of an instrument to show pressure, temperature, speed, ... (25 of 120 words, 6 definitions, pronunciation)


New World Dictionary:


a person or thing that indicates; specifically, ; any device, as a gauge, ... | any of various substances used to indicate the acidity or alkalinity ... (25 of 103 words, 4 definitions, pronunciation)



indicator | indicators [plural] | trafficator [synonym, sense-specific] | turn signal [United States, synonym, sense-specific]

A pointer or index that indicates something. | A meter or gauge. | The needle or dial on such a meter. | [chemistry] Any of many substances, such as litmus, used to indicate the concentration of a substance, or the degree of a reaction. | [ecology] A ... (43 of 77 words, 7 definitions, pronunciation)


Cambridge Dictionary:

indicator [entry 1]

something that shows what a situation is like (8 of 28 words, 2 usage examples, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/indicator 1

indicator [entry 2] | turn signal

[British] ([United States] "turn signal") one of the lights at the front ... | a device which indicates a value or a change in level, speed, etc (26 of 61 words, 2 definitions, 1 usage example, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/indicator 2

Encarta Dictionary:

indicator | indicators [plural]

something observed or calculated that is used to show the presence or state of a condition or trend | an instrument or gauge that measures something ... (25 of 97 words, 5 definitions, pronunciation)

encarta​.msn​.com​/dictionary 1861620896​/definition​.html  [offline]

Page last updated: 2013-06-26

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