cyproheptadine (5) | (noun) - circle + pro(pyl) + seven- + (piperi)dine = C21H21N an anti-histamine and anti-serotonin drug used in the treatment of asthma. |
heptachlor (5) | (noun) - seven + green + ine = a poisonous cyclodiene chlorinated hydrocarbon pesticide, C10H5Cl7. |
heptad (4) | (noun) - from the word = a group of seven. |
heptagon (2) | (noun) - seven + angle = a polygon with seven angles and seven sides. Heptagonal is the adjective form. |
heptameter (4) | (noun) - seven + measure = a line of verse with seven metrical feet. |
heptane (4) | (noun) - seven + -and = an isomeric alkane, C7H16 used as a solvent and in determining octane numbers. |
heptarchy (5) | (noun) - seven + rulers = a mythical confederacy of seven Anglo-Saxon kingdoms in the 7th and 8th centuries. |