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1. The hot, sultry period of summer between early July and early September.
2. A period of stagnation.
[Translation of Late Latin diēs canīculārēs, Dog Star days (so called because the Dog Star (Sirius) rises and sets with the sun during this time) : Latin diēs, pl. of diēs, day + Late Latin canīculārēs, pl. of canīculāris, of the Dog Star.]
1. (Physical Geography) the hot period of the summer reckoned in ancient times from the heliacal rising of Sirius (the Dog Star)
2. a period marked by inactivity
[C16: translation of Late Latin diēs caniculārēs, translation of Greek hēmerai kunades]
1. the sultry part of summer when Sirius, the Dog Star, rises at the same time as the sun.
2. a period marked by lethargy, inactivity, or indolence.
[1530–40; translation of Latin diēs caniculārēs; see canicular]
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|Noun||1.||dog days - the hot period between early July and early September; a period of inactivity|
period, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"