Ballast can be categorized as a noun and a verb.
Verb |
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| ballast - make steady with a ballast | ||
Noun |
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| ballast - any heavy material used to stabilize a ship or airship | ||
| ballast - an electrical device for starting and regulating fluorescent and discharge lamps | ||
| ballast - an attribute that tends to give stability in character and morals; something that steadies the mind or feelings | ||
| ballast - coarse gravel laid to form a bed for streets and railroads | ||
| ballast - a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations) |
| # | Sentence | ||
|---|---|---|---|
| 1. | noun | An invasive species can be introduced to a new area via the ballast water of oceangoing ships, intentional and accidental releases of aquaculture species, aquarium specimens or bait, and other means. | |
| 2. | noun | Invasive species can be introduced to an area by ship ballast water, accidental release, and most often, by people. | |
| 3. | noun | Zebra mussels arrived in the mid-1980’s in ship ballast water from the Black and Caspian Sea region, and have become a major threat to wildlife, navigation, and boating. |
| Sentence | |
|---|---|
| noun | |
| An invasive species can be introduced to a new area via the ballast water of oceangoing ships, intentional and accidental releases of aquaculture species, aquarium specimens or bait, and other means. | |
| Invasive species can be introduced to an area by ship ballast water, accidental release, and most often, by people. | |
| Zebra mussels arrived in the mid-1980’s in ship ballast water from the Black and Caspian Sea region, and have become a major threat to wildlife, navigation, and boating. | |