n. a natural family inclusing the mole rats and sand rats.
Syn. -- family Bathyergidae. [ WordNet 1.5 ]

n. a genus consisting of the mole rats.
Syn. -- genus Bathyergus. [ WordNet 1.5 ]

n. the class of fishes comprising the cartilaginous fishes, which includes the sharks.
Syn. -- class Chondrichthyes. [ WordNet 1.5 ]

n. & v. See Hie. [ Obs. ] Chaucer. [ 1913 Webster ]

a. [ L. hyemalis, or better hiemalis, fr. hyems, hiems, winter: cf. F. hyémal. ] Belonging to winter; done in winter. Sir T. Browne. [ 1913 Webster ]

v. i. [ L. hiemare, hiematum. See Hyemal. ] To pass the winter. [ Obs. & R. ] [ 1913 Webster ]

n. [ L. hiematio. ] 1. The passing of a winter in a particular place; a wintering. [ 1913 Webster ]

2. The act of affording shelter in winter. [ Obs. ] [ 1913 Webster ]

n. [ F. hyène. ] A hyena. [ Obs. ] Shak. [ 1913 Webster ]

n.; pl. Hyenas [ L. hyaena, Gr. &unr_;, orig., a sow, but usually, a Libyan wild beast, prob., the hyena, fr. &unr_; hog: cf. F. hyène. See Sow female hog. ] (Zool.) Any carnivorous mammal of the family Hyænidæ, doglike nocturnal mammals of Africa and southern Asia, of which three living species are known. They are large and strong, but cowardly. They feed chiefly on carrion, and are nocturnal in their habits. [ Written also hyæna. ]
Syn. -- hyaena. [ 1913 Webster ]

☞ The striped hyena (Hyæna striata) inhabits Southern Asia and a large part of Africa. The brown hyena (Hyæna brunnea), and the spotted hyena (Crocuta maculata), are found in Southern Africa. The extinct cave hyena (Hyæna spelæa) inhabited England and France. [ 1913 Webster ]

Cave hyena. See under Cave. --
Hyena dog (Zool.), a South African canine animal (Lycaon venaticus), which hunts in packs, chiefly at night. It is smaller than the common wolf, with very large, erect ears, and a bushy tail. Its color is reddish or yellowish brown, blotched with black and white. Called also hunting dog. [ 1913 Webster ]

a. [ Gr. &unr_; rain, from &unr_; to rain. ] Of or pertaining to rain; descriptive of the distribution of rain, or of rainy regions. [ 1913 Webster ]

n. [ Gr. &unr_; rain + -graph. ] A chart or graphic representation of the average distribution of rain over the surface of the earth. [ 1913 Webster ]

a. Of or pertaining to to hyetography. [ 1913 Webster ]

n. The branch of physical science which treats of the geographical distribution of rain. [ 1913 Webster ]

n. [ Gr. &unr_; + rain -logy. ] The science which treats of the precipitation of rain, snow, etc. -- Hy`e*to*log"ic*al a. [Webster 1913 Suppl.]

a. [ Iso- + Gr. "yeto`s rain.] (Phys. Geog.) Of or pertaining to lines connecting places on the earth's surface which have the same mean annual rainfall. -- n. An isohyetose line; called also isohyet. [1913 Webster]

‖n. pl. [ NL. See Paleo-, and Ichthyology. ] (Zool.) A comprehensive division of fishes which includes the elasmobranchs and ganoids. [ Written also Palæichthyes. ] [ 1913 Webster ]