• WordNet 3.6
    • adj hibernal characteristic of or relating to winter "bears in brumal sleep"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Not all polar bears hibernate; only pregnant females polar bears do
    • a Hibernal Belonging or relating to winter; wintry; winterish.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: A woodchuck breathes 2,100 times an hour, but it only breathes ten times an hour while it is hibernating.
    • hibernal Belonging or relating to winter; wintry.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Hibernal belonging to winter: wintry
    • ***


Webster's Revised Unabridged Dictionary
L. hibernalis, from the root of hiems, winter; akin to Gr. snow, Skr. hima, cold, winter, snow: cf. F. hibernal,
Chambers's Twentieth Century Dictionary
L. hibernāre, -ātumhibernus, wintry—hiems, winter.


In literature:

The muskrat does not hibernate like some rodents, but is pretty active all winter.
"Squirrels and Other Fur-Bearers" by John Burroughs
Other species fly early in March, on warm days, having hibernated under leaves, and the bark of trees, moss, etc.
"Our Common Insects" by Alpheus Spring Packard
The hibernating place must be dry and for this reason sandy knolls are most favored by the insects.
"Manual of American Grape-Growing" by U. P. Hedrick
Marmots hibernate during the long alpine winters.
"A Mountain Boyhood" by Joe Mills
The woodchuck hibernates, also, but he stores up fuel in the shape of fat in his own body.
"Under the Maples" by John Burroughs
This condition is well illustrated in the hibernating animals.
"A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)" by Calvin Cutter
In 1950, D. Watson thought that they did not hibernate, except for a few days when the weather was stormy.
"Mammals of Mesa Verde National Park, Colorado" by Sydney Anderson
I've been up against glory, and I'm down hungrier than a she-bear that's skipped summer and hibernated two winters.
"Blue Goose" by Frank Lewis Nason
It was summer, but the city was in a state of hibernation.
"Romantic Spain" by John Augustus O'Shea
The shrieking trade-winds and the dense white fogs were hibernating somewhere out in the Pacific.
"Ancestors" by Gertrude Atherton

In poetry:

His haughty and hibernal gaze
Seemed like twin icicles to strike.
The whole man was, in many ways,
Peculiarly cucumber-like.
"The Impervious Iceberg" by C J Dennis
Its verdure grew, its alders spread,
Its fame extended many a mile,
'Twas type of resurrected dead--
This hibernating, floating isle.
"Fidelity" by Jared Barhite

In news:

Woodchucks store their energy in fat and hibernate deeply all winter.
Emerging from hibernation with renewed vigor , sharp pencil.
With that in mind, while animals around us are beginning their hibernation, I am coming out of my self-imposed spring/summer sleep.
And probably the last live stuff they do before hitting the studio again, so soak it up here until we go into hibernation for 6-8 months.
Yellowstone and Grand Teton park officials are warning visitors that bears are waking from their winter hibernation and have already been spotted out and about, searching for winter kill.
Every year around this time, I go into "brand hibernation" mode.
Grinder and Coola, Grouse Mountain's resident grizzly bears, have officially laid down in their den to hibernate.
As Grinder and Coola finally go into hibernation, a few questions for Grouse Mountain Wildlife Manager Devin Manky.
The group is occasionally playing ultrasonic recordings of bat calls outside the cave in hopes of attracting bats , and Kingsbury says the hope is some bats will hibernate in the new cave next winter.
They say bears will head into hibernation in mid-November.
0Bear was initially found hibernating along I-75.
The Super Bowl was the perfect occasion for Katy Perry to come out of her singing hibernation.
Now an artificial cave built for their hibernation may save them.
With the MLS and college seasons complete, the Insider heads into winter hibernation.
As temperatures drop and the annual hibernation routine begins, we start using heating appliances such as the furnace, fireplace and space heaters for the first time in months.

In science:

With this, T Pyx will enter a state of hibernation lasting for an estimated 2,600,000 years before gravitational radiation brings the system into contact again.
The Nova Shell and Evolution of the Recurrent Nova T Pyxidis
Shara et al. 1989 and the hibernation scenario of cataclysmic variables).
The Nova Shell and Evolution of the Recurrent Nova T Pyxidis
So we see the long term evolution of T Pyx as passing through at least three states in succession, from the ordinary CV state to the RN state to the hibernation state.
The Nova Shell and Evolution of the Recurrent Nova T Pyxidis
Indeed, the hibernation state must inevitably change to the ordinary CV state, and so we have a cycle.
The Nova Shell and Evolution of the Recurrent Nova T Pyxidis
That is, when the RN state is over, there will be effectively zero accretion. T Pyx will go into a state of hibernation, where we only see the faint light from the companion and the WD, with no accretion disk.
The Nova Shell and Evolution of the Recurrent Nova T Pyxidis