Comparer vs. Comparator

Comparer and Comparator Definitions
Comparer
To consider or describe as similar, equal, or analogous; liken
Is it right to compare the human brain to a computer?.
Comparator
Any of various instruments for comparing a measured property of an object, such as its shape, color, or brightness, with a standard.
Comparer
To examine in order to note the similarities or differences of
We compared the two products for quality and cost. The article compares the recent recession with the one in the early 1990s.
Comparator
Any device for comparing a physical property of two objects, or an object with a standard.
Comparer
(Grammar) To form the positive, comparative, or superlative degree of (an adjective or adverb).
Comparator
An electronic device that compares two voltages, currents or streams of data.
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Comparer
To be worthy of comparison; bear comparison
Two concert halls that just do not compare.
Comparator
(law) anything that serves comparison
Comparer
To draw comparisons.
Comparator
(computing) An application or program that compares prices, rates, tariffs of flights, smartphones, cars, etc.
Comparer
Comparison
A musician beyond compare.
Comparator
An instrument or machine for comparing anything to be measured with a standard measure; - applied especially to a machine for comparing standards of length.
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Comparer
One who, or that which, compares.
Comparer
One who compares.