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Alarm signal: In the field of animal communication, an alarm signal is an antipredator adaptation referring to various signals emitted by social animals in response to danger. Many primates and birds have elaborate alarm calls for warning conspecifics of approaching predators. For example, the characteristic alarm call of the blackbird is a familiar sound in many gardens. Other animals, like fish and insects, may use other non-auditory signals, such as chemical messages. While visual signs have been suggested as alarm signals, they are easier to pinpoint by predators and less likely to be received by conspecifics, so have tended to be treated as a signal to the predator instead. An animal who signals an alarm is called an alarmer.
- also known as Alarm call
Printed dictionaries and other books with definitions for Alarm signal
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Best Practices and Procedures by Lawrence Fennelly, Marianna Perry
An alarm signal is a signal indicating an emergency requiring immediate action initiated from automatic or manual detection of an alarm condition from a device such as a manual pull station, water flow alarm, smoke detector, or some other ...
The Extended Organism (2009)
The Physiology of Animal-Built Structures by J Scott Turner
Often, the alarm signal is a volatile chemical, an alarm pheromone, released from specialized glands in the worker's body.4 When another bee senses the alarm pheromone, this triggers an alarm reflex in it, which initiates the reflex in yet ...
Automatic Telephone (1921)
Alarm Signal. — An alarm signal is a sound producing device for attracting attention to cither a supervisory or tell-tale signal.
by Martin H. Weik
alarm signal. 1. A signal that draws the attention of a user or operator, for example, a bell or a blinking light. 2.
A Dictionary of Psychology (2015)
by Andrew M. Colman
A vocal *alarm signal. alarm pheromone n. A *pheromone that is released by an animal as an *alarm signal and that induces a fear or fright response in members of the same species. alarm reaction n. The first stage of the *general adaptation ...
an alarm signal, or to announce to the patrolman that the station house desires to speak to him by telephone. The telephones are inductively connected with the circuit, and they are so arranged, with relation to the signaling part of the system ...
The Encyclopaedia Britannica (1896)
A Dictionary of Arts, Sciences, and General Literature
a bell in the street station to indicate the reception by the station house of an alarm signal, or to announce to the patrolman that the station house desires to speak to him by telephone. The telephones are inductively connected with the circuit, ...
by Xerxes Mazda, Fraidoon Mazda
alarm signal: A signal which indicates an abnormal operation and is intended to draw the attention of an operator. a-law: In digital telephony the analogue voice signal is converted to a digital signal within an ...
a cyclopedia of words, terms, phrases and data used in the electric arts, trades and sciences by Nehemiah Hawkins
Fire Alarm Signal Box. — A signal box conveniently located for turning in a fire alarm. Fire Alarm Telegraph. — A system of telegraphy for sending fire alarms from ...
by H. Brooke Stauffer
Fire Alarm Signal. Signal initiated by a fire alarm-initiating device, such as a manual fire alarm box, automatic fire detector, waterflow switch, or other device. Fire Alarm System. Components and circuits arranged to monitor and annunciate the ...
by Louisa Pansegrouw
alarm bell klaxon, tocsin alarm clock rouser alarmed agitation trepidation alarmist panicmonger, scaremonger alarm signal siren, tocsin alarm ...
by Waldemar Karwowski
sound changes Decreasing of RPM Decreasing of turning moment Pressure drop in gas system Decreasing of exhaust gases temperature Lighting of signal bulb (alarm signal) about engine failure Pressure drop in oil system RUBINSHTEIN ...
by National Fire Protection Association
notification Alarm initiating appliance circuit device circuit Protected Premises system control unit Main power Trouble signal notification appliance - Standby power [FO Alarm signal FC notification appliance FIGURE F.3 FireAlarm System.
Mongolian English Dictionary (2013)
зогсох ~ brakelight, түгшүүрийн ~ alarm signal, danger signal, эргэх ~( эргэлтийн дохионы гэрэл) direction indicator, дохионы бичиг TibetanMongol bilingual dictionary (a/so даяг), ~зангаа gesture, ~өгөх to signal, ~ санаа авахto getthe ...
Volume 38 - Supplement 23: Algorithms for Designing Multimedia Storage Servers to Models and Architectures by Allen Kent, James G. Williams
Public Applications For relaying a civil alarm signal to a deaf user, the following information channels can be used: • A dedicated radio frequency • A subcarrier or RDS code of the local FM station (83) • The short message service (SMS) of the ...
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- Alarm signal
Notice inside vintage carriage, Ffestiniog Railway
Photo credit: James E. Petts
- Alarm Signal
Something from the inside of a tube train
Photo credit: catmachine
- Alarm signal types
Fallout shelter notice describing alarm signal types for different situations: air raid, evacuation order, nuclear bombing, radiation alert, chemical attack.
Photo credit: brucknerite
Anagrams of ALARM SIGNAL
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- SIGNAL ALARM
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