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di·ur·nal
 diurnal
- pronunciation:
- daI
uhr
n
 l
| part of speech: |
adjective |
| definition 1: |
occurring or active during, or belonging to, the daytime rather than nighttime. (Cf. nocturnal.)
While ordinary squirrels are diurnal, flying squirrels are active in the nighttime.- antonyms:
- nocturnal
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| definition 2: |
occurring in or pertaining to a day or each day; daily.
- antonyms:
- nightly, nocturnal
- similar words:
- daily, quotidian
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| derivation: |
diurnally (adv.) |
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