screw-steamer
Definition
- Noun:
- A screw-steamer is a historical type of steamship propelled by a screw propeller (a rotating blade mechanism) rather than by paddle wheels. The term combines "screw" (referring to the propeller) and "steamer" (a steam-powered vessel).
Usage Examples
- Noun:
- The screw-steamer revolutionized maritime travel in the mid-19th century by offering greater efficiency and speed than paddle-wheel ships. (A steam-powered ship with a screw propeller.)
- Many early screw-steamers were converted from sailing ships or built specifically for naval and commercial use. (Historical steam vessels with propeller drives.)
Advanced Usage
"to convert a sailing ship into a screw-steamer": to retrofit a traditional sailing vessel with a steam engine and screw propeller.
- The navy experimented with converting old frigates into screw-steamers to test the new propulsion system. (Modifying ships for propeller-driven steam power.)
"screw-steamer vs. paddle-steamer": a comparison between two types of steam propulsion.
- The screw-steamer was less vulnerable to damage in rough seas than the paddle-steamer, whose exposed wheels were easily broken. (A contrast in design advantages.)
Variants and Related Words
Screw-propeller (n): the rotating blade device that drives a screw-steamer forward.
- The screw-propeller was a key innovation that made the screw-steamer practical. (The propulsion mechanism itself.)
Steamship (n): a broader category of steam-powered vessels, including screw-steamers.
- The screw-steamer is a specific type of steamship. (A general term for steam vessels.)
Synonyms
- Propeller-driven steamer: a descriptive synonym emphasizing the propulsion method.
- Screw vessel: a shorter, technical term for a ship with a screw propeller.
Related Idioms
"Full steam ahead": an idiom meaning to proceed with maximum effort, originally nautical jargon for operating a steamer at full power.
- The captain ordered full steam ahead as the screw-steamer entered open water. (Command to increase speed using the steam engine.)
"To be on the screw": a rare, historical nautical expression meaning to operate a screw-propeller ship.
- Sailors on the screw-steamer had to adjust to the new technology of being on the screw. (Working aboard a propeller-driven vessel.)