getter

A miner uses a getter to remove gas from the vacuum tube.

Definition

1. Noun:
   • One who obtains or acquires: A "getter" is a person or thing that obtains, acquires, or secures something (e.g., a "go-getter" is a person who actively pursues goals, but note that "getter" alone is rarely used; see usage note below).
   • A substance that removes impurities: In physics and electronics, a "getter" is a material (often a metal or chemical) used to absorb or remove residual gases from a vacuum tube or sealed chamber, improving performance.
   • A miner: In mining, a "getter" is a worker who extracts coal, ore, or other minerals from a mine.
   • A breeding male: In animal husbandry, a "getter" refers to a male animal kept for breeding purposes (especially in livestock or stud farming).

Usage Examples

• Noun:
  • The vacuum tube contains a getter that absorbs oxygen and moisture. (A substance used to purify the vacuum.)
  • The mine employed several getters to extract coal from the deep seams. (Miners who obtain raw materials.)
  • The farmer selected a strong getter for the herd to improve bloodlines. (A male animal used for breeding.)

Advanced Usage

• "Getter" in technical contexts: In vacuum technology, a "getter" is often a metallic coating (e.g., barium) that is vaporized inside a glass tube to chemically bond with stray gas molecules.

  • The getter in the old radio tube had turned white, indicating it had absorbed too much gas. (The material had become saturated with impurities.)

• "Getter" in slang or informal use: The word is rarely used alone in everyday speech; it is most common in compound forms like "go-getter" (an ambitious person) or "getter-done" (a person who completes tasks efficiently).

  • She's a real getter when it comes to meeting deadlines. (Informal; meaning she is very effective at achieving results.)

Variants and Related Words

• Go-getter (n): an ambitious, energetic person who actively pursues success.

  • He is a go-getter who started his own business at age 20. (An assertive, goal-oriented individual.)

• Getter-done (n, informal): a person who completes tasks efficiently.

  • We need a getter-done to organize this project. (A practical, action-oriented person.)

Synonyms

• Acquirer: one who gains possession of something.
• Obtainer: one who gets or secures something.
• Scavenger: (in technical contexts) a substance that removes impurities, similar to a getter.
• Extractor: a person or device that removes materials (e.g., a miner).

Related Idioms

• "Getter-up" (rare): a person who rises early or motivates others.

  • He is a getter-up at dawn, always ready for work. (Archaic; someone who wakes early.)

• "To be a getter": (informal) to be someone who actively acquires possessions or achievements.

  • In business, you need to be a getter, not a giver. (A metaphorical expression emphasizing acquisition over generosity.)