from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A device which captures surface runoff for use as a water supply.
from the GNU version of the Collaborative International Dictionary of English
- n. A ditch or drain for catching water. See catchdrain.
from The Century Dictionary and Cyclopedia
- n. Same as catchwork.
- n. In physical, a conical receiver placed beneath a bulb, flask, or other vessel to catch the water which is condensed upon its outer surface.
catch + water (Wiktionary)
This is a nice little catchwater for stray streams to run into before they freeze.