analog


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Related to analog: analog watch, Analog signal

analog

 [an´ah-log]
pertaining to an electronic system in which a continuous electrical signal is used to carry nonelectrical information (such as sound), which is represented by variations in the voltage or current that are in direct correlation to the information carried. See also digital.

analog

or

analogue

(ăn′ə-lôg′, -lŏg′)
n.
1. Biology An organ or structure that is similar in function to one in another kind of organism but is of dissimilar evolutionary origin.
2. Chemistry A structural derivative of a parent compound that often differs from it by a single element.
adj.
Of, relating to, or being a device in which data or a signal is represented by continuously variable, measurable, physical quantities, such as length, width, voltage, or pressure.

analogue

Chemistry
noun A compound that is structurally similar to another.

Imaging
adjective An MRI term referring to or having a continuous range of values.

Informatics
adjective Referring to data in the form of continuously variable (non-discrete) physical quantities, the mode in which most lab instruments produce information, where data is generated as non-discrete signals, as in AC or DC current, voltage changes or pulse amplitudes.

Molecular biology
adjective Referring to a molecule that is structurally and functionally related to another molecule.

noun A molecule that is structurally and functionally related to another molecule.    

Pharmacology
noun A therapeutic agent with structural or chemical similarity to, or which mimics the effects of, another agent, but which differs chemically.

an·a·logue

, analog (an'ă-lawg)
1. One of two organs or parts in different species of animals or plants that differ in structure or development but are similar in function.
2. A compound that resembles another in structure but is not necessarily an isomer; analogues are often used to block enzymatic reactions by combining with enzymes.
[G. analogos, proportionate]
References in periodicals archive ?
analog processing is able to operate in real time and inherently perform many computations that require significant overhead in the digital domain (e.g., multiplication and other nonlinear functions)." (2) So, there are many reasons to consider using an FPAA for sensor signal conditioning and processing.
While IP cameras have a long list of benefits over analog cameras, most grocers do not want to throw out working analog cameras.
Analog also offer 27 days' annual leave, membership to their sports and social club, tuition reimbursement and subsidised canteens.
For those who want more extensive phone functions but aren't ready to go wireless, there is the option of an IP phone, which looks much like an analog handset but taps into the network's capability more than traditional phones.
Other units include 1/16-, 1/8- and 1/4-DIN temperature controllers with analog or digital setpoints and on/off or proportional control.
As with the traditional cameras, LDA (linear diode array) imaging systems produce an analog signal.
With the SPICE Macro Models, Microchip enables engineers to complete analog simulation and modeling through a number of sophisticated libraries.
Mixed-signal is particularly tricky to design since analog devices possess different characteristics compared to digital components: different power rating, current, voltage callouts and heat dissipation requirements, to name a few.
Welsh and her colleagues are giving lab animals large doses of vitamin D, rather than 1,25-D or an analog. Whereas 1,25-D is toxic at high does, vitamin D is less so.
In the early 1990s, just over 90% of the world's data was born non-digital in analog format.
As digital televisions pervade deeper into the mainstream and their sales boom, will analog televisions go the way of the black-and-white TV relic?