acellular
adjective
acel·lu·lar
| \ (ˌ)ā-ˈsel-yə-lər
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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
First, for unclear reasons, protection conferred by the acellular vaccine waned over time. — Quanta Magazine, "Vaccines Are Pushing Pathogens to Evolve," 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, "Vaccine Injury Claims Are Few and Far Between," 18 June 2019 There is also another, less publicized, method of producing animal products called acellular agriculture. — Andrew Amelinckx, Smithsonian, "What a Vice President of the Humane Society Has To Say About Lab-Grown Meat," 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, "Pa. families appear to embrace tougher school vaccination rules," 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, "Important vaccination recommendations and updates for teens, preteens," 14 Aug. 2017 Pennsylvania also requires vaccination against tetanus, diphtheria, acellular pertussis, measles, mumps, rubella, hepatitis B, and chickenpox. — Rita Giordano, Philly.com, "New Pa. health rule: Get your kids vaccinated or they can't go to school," 8 Aug. 2017These 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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More Definitions for acellular
acellular
adjective
acel·lu·lar
| \ (ˈ)ā-ˈsel-yə-lər
\
\
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