U8W1A Spelling Crossword

1. having lost a large amount of water from the body.
9. a brilliant performance or display, especially of a specified skill.
11. a device for measuring short time intervals, especially in determining the velocity of projectiles, or a person's reaction time.
12. the branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.
14. an obsessive desire to set fire to things.
15. (of an illness) persisting for a long time or constantly recurring.
18. a factual written account of important or historical events in the order of their occurrence.
19. a light, fast motorboat designed to skim over the surface of water.

1. a metric unit of length, equal to one tenth of a meter.
2. a metric unit of length equal to 1,000 meters (approximately 0.62 miles).
3. (of a record of events) starting with the earliest and following the order in which they occurred.
4. a device used by musicians that marks time at a selected rate by giving a regular tick.
5. the science of surveying and charting bodies of water, such as seas, lakes, and rivers.
6. an instrument on a vehicle's dashboard indicating its speed.
7. existing or occurring at the same time.
8. a boat whose hull is fitted underneath with shaped vanes (foils) that lift the hull clear of the water to increase the boat's speed.
10. the branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs.
13. an instrument for measuring the density of liquids.
16. archaic term for hydrochloric acid.
17. an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.