high-octane
— Adjective
– English
~ used of gasoline; having a high octane number
high-octane
— Adjective
– English
~ vigorously energetic or forceful; "a high-octane sales manager"; "a high-octane marketing plan"; "high-powered executives"; "a high-voltage theatrical entrepreneur"
Horatian ode
— Noun
– English
~ an ode with several stanzas
hard-of-hearing
— Adjective
– English
~ having a hearing loss
heat of condensation
— Noun
– English
~ heat liberated by a unit mass of gas at its boiling point as it condenses into a liquid; "the heat of condensation is equal to the heat of vaporization"
heat of fusion
— Noun
– English
~ heat absorbed by a unit mass of a solid at its melting point in order to convert the solid into a liquid at the same temperature; "the heat of fusion is equal to the heat of solidification"
Heart of Dixie
— Noun
– English
~ a state in the southeastern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War
heat of dissociation
— Noun
– English
~ the heat required for a fluid substance to break up into simpler constituents
heat of formation
— Noun
– English
~ the heat evolved or absorbed during the formation of one mole of a substance from its component elements
Hanging Gardens of Babylon
— Noun
– English
~ a terraced garden at Babylon watered by pumps from the Euphrates; construction attributed to Nebuchadnezzar around 600 BC
Hall of Fame
— Noun
– English
~ a building containing trophies honoring famous people
holy of holies
— Noun
– English
~ (figurative) something regarded as sacred or inviolable; "every politician fears to touch that holy of holies, the Social Security System"
holy of holies
— Noun
– English
~ (Judaism) sanctuary comprised of the innermost chamber of the Tabernacle in the temple of Solomon where the Ark of the Covenant was kept
holy day of obligation
— Noun
– English
~ a day when Catholics must attend Mass and refrain from servile work, and Episcopalians must take Communion
Hero of Alexandria
— Noun
– English
~ Greek mathematician and inventor who devised a way to determine the area of a triangle and who described various mechanical devices (first century)
head of hair
— Noun
– English
~ growth of hair covering the scalp of a human being