acellular

adjective
acel·​lu·​lar | \ (ˌ)ā-ˈsel-yə-lər How to pronounce acellular (audio) \

Definition of acellular

1 : containing no cells acellular vaccines
2 : not divided into cells : consisting of a single complex cell used especially of protozoa and ciliates

Examples of acellular in a Sentence

Recent Examples on the Web Today, recruits entering Army basic training receive vaccines against many diseases, including hepatitis A; hepatitis B; measles/mumps/rubella; tetanus, diphtheria and acellular pertussis; varicella; meningitis; and polio. Sig Christenson, San Antonio Express-News, 4 Oct. 2021 For the diphtheria and tetanus toxoids and acellular pertussis vaccine or DTaP, coverage ranged from 88.8% in Idaho to at least 99.2% in Mississippi, according to the report. Jacqueline Howard, CNN, 17 Oct. 2019 First, for unclear reasons, protection conferred by the acellular vaccine waned over time. Quanta Magazine, 10 May 2018 The pertussis formulation, known as whole-cell, was replaced in the 1990s with acellular versions contained in the current DTaP and Tdap vaccines. New York Times, 18 June 2019 There is also another, less publicized, method of producing animal products called acellular agriculture. Andrew Amelinckx, Smithsonian, 12 Dec. 2017 The new state rules also require some additional vaccinations for polio and meningitis, in addition to those already required for tetanus, diphtheria, acellular pertussis, measles, mumps, rubella, hepatitis B and children pox. Rita Giordano, Philly.com, 13 Sep. 2017 The four vaccines for entering kindergarten remain the same: 1) chicken pox, 2) polio, 3) measles/mumps/rubella (MMR) and 4) diphtheria, tetanus and acellular pertussis (DTaP) for children under seven years. Cincinnati.com, 14 Aug. 2017 Pennsylvania also requires vaccination against tetanus, diphtheria, acellular pertussis, measles, mumps, rubella, hepatitis B, and chickenpox. Rita Giordano, Philly.com, 8 Aug. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acellular.' 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 acellular

1857, in the meaning defined at sense 1

History and Etymology for acellular

a- entry 2 + cellular entry 1

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Time Traveler for acellular

Time Traveler

The first known use of acellular was in 1857

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Dictionary Entries Near acellular

Aceldama

acellular

acenaphth-

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Last Updated

14 Oct 2021

Cite this Entry

“Acellular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acellular. Accessed 27 Nov. 2021.

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More Definitions for acellular

acellular

adjective
acel·​lu·​lar | \ (ˈ)ā-ˈsel-yə-lər How to pronounce acellular (audio) \

Medical Definition of acellular

1 : containing no cells acellular vaccines
2 : not divided into cells : consisting of a single complex cell used especially of protozoans and ciliates

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