Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: Latin
Origin: , present participle of componere; COMPOUND2

component

1 noun
     
com‧po‧nent1 S3 W2 [countable]
one of several parts that together make up a whole machine, system etc [= constituent]:
companies that make electronic components for computer products
component of
each component of their work
key/major/important etc component
Exercise is one of the key components of a healthy lifestyle.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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