different between signalling vs heliography
signalling
English
Alternative forms
- signaling (US)
Verb
signalling
- present participle of signal
Noun
signalling (countable and uncountable, plural signallings) (British spelling)
- the use of signals in communications, especially the sending of signals in telecommunications
- (rail transport) the signals and associated equipment required for their operation.
Derived terms
- cab signalling
signalling From the web:
- what signalling system
- what is signalling theory
- what's virtue signalling
- what is signalling in economics
- what are signalling molecules
- what is signalling in railways
- what is signalling in telecommunication
- what are signalling pathways
heliography
English
Etymology
helio- +? -graphy
Pronunciation
- Rhymes: -????fi
Noun
heliography (uncountable)
- The scientific study of the sun.
- The art of making a heliograph.
- The system of signalling by heliograph.
- (obsolete) Photography.
heliography From the web:
- what heliograph mean
- what does heliograph mean
- what is heliography photography
- what does heliograph mean in photography
- heliograph definition
- what is heliograph called
- when was the heliograph made
- what is holography technology
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