Spacer

//ˈspeɪsɚ// noun, slang

noun, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    A person who works or lives in space.

    "It was the futile throwing back in the face of the Spacers their most keenly felt insult: their insistence on considering the natives of Earth as disgustingly diseased."

  2. 2
    An object inserted to hold a space open in a row of items, e.g. beads or printed type.
  3. 3
    A bushing.
  4. 4
    A forgetful person; one who spaces out. slang
  5. 5
    A type of add-on device used by an asthmatic person to increase the effectiveness of a metered-dose inhaler.
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  1. 6
    An instrument for reversing a telegraphic current, especially in a marine cable, to increase the speed of transmission. historical

Synonyms

All synonyms
planeteer

Example

More examples

"The New York research team was able to send the Cas9 enzyme to locate and destroy a target within a particular strain of a harmful bacteria by engineering the CRISPR spacer sequences so that it matched the “bad microbe’s” genes."

Etymology

From space + -er.

Related phrases

intergenic spacerspacer DNAspacer oligonucleotide typingmetered dose inhalerspace out

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.