linen tester

noun

A folding magnifying glass which, when unfolded, forms a frame for the lens at a pre-focussed distance. Commonly used in stamp collecting.

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Meanings

nounlinen tester (plural linen testers)

plural linen testers

  1. A folding magnifying glass which, when unfolded, forms a frame for the lens at a pre-focussed distance. Commonly used in stamp collecting.
  2. A small magnifying glass, as might be used to check the thread count of linens.

Origin

From linen + tester.

Full word history & related roots →
Cite this entry
APA

linen tester. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/linen%20tester

MLA

“linen tester.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/linen%20tester. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “linen tester,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/linen%20tester.

Source: linen tester on Wiktionary, CC BY-SA 4.0.