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nouna long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer
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noun(Greek mythology) monster with nine heads; when struck off each head was replaced by two new onestype of:
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nounsmall tubular solitary freshwater hydrozoan polyp
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"we may be facing a hydra that defies any easy solution"nountrouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality
Definition that contains hydra
- coelenterata hydras; polyps; jellyfishes; sea anemones; corals
- epsom salts hydrated magnesium sulfate that is taken orally to treat heartburn and constipation and injected to prevent seizures
- drum brake hydraulic brake in which friction is applied to the inside of a spinning drum by the brake shoe
- phylum cnidaria hydras; polyps; jellyfishes; sea anemones; corals
- blue copperas hydrated blue crystalline form of copper sulfate
- genus hydra hydras
- disc brake hydraulic brake in which friction is applied to both sides of a spinning disk by the brake pads
- foot brake hydraulic brake operated by pressing on a foot pedal
- phylum coelenterata hydras; polyps; jellyfishes; sea anemones; corals
- blue stone hydrated blue crystalline form of copper sulfate