Rule of thumb definitions

Rule of thumb

1) Common sense procedure 2) General guideline 3) Nonscientific gauge 4) Practical method of procedure 5) Unscientific procedure 6) Widely applied principle
Found on https://www.crosswordclues.com/clue/rule-of-thumb

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rule of thumb

The usual idea about something which is generally correct.
Found on http://www.bbc.co.uk/skillswise/glossary/

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rule of thumb

a general or approximate principle, procedure, or rule based on experience or practice, as opposed to a specific, scientific calculation or estimate. · a rough, practical method of procedure.
Found on https://www.infoplease.com/dictionary/rule-of-thumb

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