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tester

1
[ tes-ter ]
/ ˈtɛs tər /
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See synonyms for: tester / testers on Thesaurus.com

noun
a person or thing that tests.
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Origin of tester

1
First recorded in 1655–65; test1 + -er1

Other definitions for tester (2 of 3)

tester2
[ tes-ter, tees- ]
/ ˈtɛs tər, ˈtis- /

noun
a canopy, as over a bed or altar.

Origin of tester

2
First recorded in 1350–1400; Middle English tester, testo(u)r, testir, teester “headpiece,” from Old French testiere “headpiece, head covering,” from Medieval Latin testerium, testrum, testura “canopy of a bed”; derivative of Vulgar Latin testa “head,” from Latin testa “earthenware jar; brick; tile”; see test2

Other definitions for tester (3 of 3)

tester3
[ tes-ter ]
/ ˈtɛs tər /

noun
the teston of Henry VIII.

Origin of tester

3
First recorded in 1560–70; earlier testorn, variant of teston, with -r- from Middle French testart “teston”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use tester in a sentence

British Dictionary definitions for tester (1 of 3)

tester1
/ (ˈtɛstə) /

noun
a person or thing that tests or is used for testing

British Dictionary definitions for tester (2 of 3)

tester2
/ (ˈtɛstə) /

noun
(in furniture) a canopy, esp the canopy over a four-poster bed

Word Origin for tester

C14: from Medieval Latin testerium, from Late Latin testa a skull, from Latin: shell

British Dictionary definitions for tester (3 of 3)

tester3
/ (ˈtɛstə) /

noun
another name for teston (def. 2)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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