[in-di-key-ter] /ˈɪn dɪˌkeɪ tər/
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, volume, or the like.
an instrument that indicates the condition of a machine or the like.
an instrument for measuring and recording variations of pressure in the cylinder of an engine.
Ecology. a plant, animal, or species that indicates, by its presence in a given area, the existence of certain environmental conditions.
something that provides an indication, esp of trends See economic indicator
a device to attract attention, such as the pointer of a gauge or a warning lamp
an instrument that displays certain operating conditions in a machine, such as a gauge showing temperature, speed, pressure, etc
Also called blinker. a device for indicating that a motor vehicle is about to turn left or right, esp two pairs of lights that flash when operated or a pair of trafficators
Also called dial gauge. a delicate measuring instrument used to determine small differences in the height of mechanical components. It consists of a spring-loaded plunger that operates a pointer moving over a circular scale
(ecology) Also called indicator species
1660s, from Late Latin indicator, agent noun from indicare (see indication). As a finger muscle, from 1690s.
indicator in·di·ca·tor (ĭn’dĭ-kā’tər)
A chemical compound that changes color and structure when exposed to certain conditions and is therefore useful for chemical tests. Litmus, for example, is an indicator that becomes red in the presence of acids and blue in the presence of bases.
- Indicator diagram
noun 1. a graphical or other representation of the cyclic variations of pressure and volume within the cylinder of a reciprocating engine obtained by using an indicator
noun 1. See at (def 6). indicator species A species whose presence, absence, or relative well-being in a given environment is a sign of the overall health of its ecosystem. By monitoring the condition and behavior of an indicator species, scientists can determine how changes in the environment are likely to affect other species that […]
[in-duh-seez] /ˈɪn dəˌsiz/ noun 1. a plural of . [in-deks] /ˈɪn dɛks/ noun, plural indexes, indices [in-duh-seez] /ˈɪn dəˌsiz/ (Show IPA) 1. (in a nonfiction book, monograph, etc.) a more or less detailed alphabetical listing of names, places, and topics along with the numbers of the pages on which they are mentioned or discussed, usually […]
[in-dish-ee-uh] /ɪnˈdɪʃ i ə/ plural noun, singular indicium. 1. a postal marking used rather than a stamp or a regular cancellation on each item in a large shipment of prepaid mail. 2. Often, indicium. [in-dish-ee-uh m] /ɪnˈdɪʃ i əm/ noun, plural indicia [in-dish-ee-uh] /ɪnˈdɪʃ i ə/ (Show IPA), indiciums. 1. (def 2). /ɪnˈdɪʃɪə/ plural noun […]