1. flower-of-an-hour

noun. annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America.

Rhymes with Sidereal Hour

• dessauer
• scour
• n'dour
• krauer
• flour
• blauer
• sour
• lour
• jour
• dower
• dour
• bour

2. horsepower-hour

noun. a unit of work equal to the work done by one horsepower in one hour.

3. quarter-hour

noun. a quarter of an hour.

4. ampere-hour

noun. a unit of charge equal to 3600 coulombs.

5. half-hour

noun. ['ˈhæˌfaʊɝ'] a half of an hour.

6. watt-hour

noun. a unit of energy equal to the power of one watt operating for one hour.

7. hour

noun. ['ˈaʊɝ, ˈaʊr'] a period of time equal to 1/24th of a day.

8. hour

noun. ['ˈaʊɝ, ˈaʊr'] clock time.

9. hour

noun. ['ˈaʊɝ, ˈaʊr'] a special and memorable period.

10. hour

noun. ['ˈaʊɝ, ˈaʊr'] distance measured by the time taken to cover it.