We found 8 dictionaries that define the word mental strain:

General (7 matching dictionaries)

1. mental strain: Collins English Dictionary
2. mental strain: Vocabulary.com
3. mental strain: Dictionary.com
4. mental strain: Rhymezone
5. mental strain: FreeDictionary.org
6. mental strain: Mnemonic Dictionary
7. mental strain: TheFreeDictionary.com

Computing (1 matching dictionary)

8. mental strain: Encyclopedia

(Note: See mental_strains as well.)

Definitions from WordNet (mental strain) ▸ noun:  (psychology) nervousness resulting from mental stress ("The mental strain of staying alert hour after hour was too much for him") Opposite: relaxation, calmness, serenity, peace ▸ Words similar to mental strain ▸ Usage examples for mental strain ▸ Idioms related to mental strain ▸ Wikipedia articles (New!) ▸ Words that often appear near mental strain ▸ Rhymes of mental strain ▸ Invented words related to mental strain