non·​re·​spond·​er | \ ˌnän-ri-ˈspän-dər How to pronounce nonresponder (audio) \
plural nonresponders

Definition of nonresponder

: one that does not respond survey nonresponders : someone (such as a patient) or something (such as a cell) that does not respond to something (such as medical treatment or an antigen) a patient who was a nonresponder to the experimental treatment

Examples of nonresponder in a Sentence

Recent Examples on the Web To count those who don’t send in responses by the end of April, the Census Bureau will in mid-May begin to send out enumerators, the folks who go door to door collecting data from the nonresponders. Alex Davies, Wired, "Coronavirus Will Make the 2020 Census Even Trickier," 12 Mar. 2020 In all, nonresponders in Bexar County will receive at least five mail-outs and as many as six visits. Elaine Ayala,, "Ayala: City, county census effort counting on ‘self-responders’ to respond immediately," 20 Feb. 2020 That is mostly because response rates have declined, which forces the census to spend more money following up with nonresponders. Janet Adamy, WSJ, "What’s Next for the 2020 Census," 27 June 2019 If your tumors kept growing after treatment, you were considered a nonresponder. Eric Boodman, STAT, "How gut bacteria impact cancer treatment: meet the STAT Madness 2018 Editors’ Pick," 2 Apr. 2018 After months of this routine, the patients had their bodies scanned to assess the state of their tumors, and the researchers divided them into two groups: responders and nonresponders. Eric Boodman, STAT, "How gut bacteria impact cancer treatment: meet the STAT Madness 2018 Editors’ Pick," 2 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nonresponder.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of nonresponder

1959, in the meaning defined above

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The first known use of nonresponder was in 1959

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Cite this Entry

“Nonresponder.” Dictionary, Merriam-Webster, Accessed 14 Jul. 2020.

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More Definitions for nonresponder


non·​re·​spond·​er | \ -ri-ˈspän-dər How to pronounce nonresponder (audio) \

Medical Definition of nonresponder

: one (as a person or a cell) that does not respond (as to medical treatment or to an antigen)

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