analyzer
n.a machine or a person that examines something in detail to find out what it is made of or how it works.
n.a person or device that performs a systematic examination of data, substances, or complex systems to determine their constituent parts or underlying principles.
“The lab technician used a blood analyzer to check the sample.”
“The software includes a built-in network analyzer to help IT staff identify where the connection is slowing down.”
“By feeding the raw data into a sophisticated spectrum analyzer, the researchers were able to isolate specific frequencies that had previously been obscured by background noise.”
Commonly used in technical, medical, and computing contexts; the spelling 'analyser' is preferred in British English.
Learners often use 'analyzer' (the tool/person) when they mean 'analysis' (the process or result).
From analyze + -er.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.