heptad
— Navneord
– Engelsk
~ the cardinal number that is the sum of six and one
heptadecanoic acid
— Navneord
– Engelsk
~ a colorless crystalline synthetic fatty acid
heptagon
— Navneord
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~ a seven-sided polygon
heptane
— Navneord
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~ a colorless volatile highly flammable liquid obtained from petroleum and used as an anesthetic or a solvent or in determining octane ratings
Hera
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~ queen of the Olympian gods in ancient Greek mythology; sister and wife of Zeus remembered for her jealously of the many mortal women Zeus fell in love with; identified with Roman Juno
heracles
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~ (classical mythology) a hero noted for his strength; performed 12 immense labors to gain immortality
heracleum
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~ widely distributed genus of plants with usually thick rootstocks and large umbels of white flowers
heraclitus
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– Engelsk
~ a presocratic Greek philosopher who said that fire is the origin of all things and that permanence is an illusion as all things are in perpetual flux (circa 500 BC)