shot metal
Học thuậtThân thiện
Definition
Noun: * An alloy primarily of lead and arsenic: "shot metal" specifically refers to a metallic alloy historically used in manufacturing small spherical projectiles, known as "shot," for firearms. Its traditional composition is approximately 98% lead and 2% arsenic.
Usage
- "Shot metal" is a technical, historical term. It is not used in everyday conversation but is found in texts related to metallurgy, historical manufacturing, or ammunition history.
- It functions as a compound noun where "shot" describes the purpose of the "metal" (the alloy).
Examples
- The old recipe for shot metal called for a precise mixture of lead and arsenic.
- Arsenic was added to the lead to create shot metal, which produced harder, rounder pellets.
- Studying the composition of shot metal provides insight into 19th-century ballistic technology.
Advanced Usage
- The term is largely obsolete in modern manufacturing, as the production of lead shot has evolved and the use of arsenic has been discontinued due to its toxicity.
- It may appear in historical analyses or discussions of antique ammunition.
Variants and Related Words
- Shot (n): The small spherical pellets made from this or similar alloys.
- Alloy (n): A metal made by combining two or more metallic elements.
- Lead shot (n): A more general term for small lead pellets, which may or may not contain arsenic.
Synonyms
- Shot alloy: A less common but technically accurate synonym.
- Arsenical lead: A descriptive term focusing on its composition.
Notes on Meaning
- The definition is highly specific and technical. The word "shot" in this compound does not carry its more common meanings (e.g., the act of firing, a photograph, an attempt). It refers exclusively to the small pellets.
- There are no idioms or phrasal verbs associated with this specific technical compound noun.
Noun
- an alloy that is 98% lead and 2% arsenic; used in making small shot