antigen

noun

an·ti·gen ˈan-ti-jən How to pronounce antigen (audio)

-ˌjen

: any substance (such as an immunogen or a hapten) foreign to the body that evokes an immune response either alone or after forming a complex with a larger molecule (such as a protein) and that is capable of binding with a product (such as an antibody or T cell) of the immune response

antigenic

ˌan-ti-ˈje-nik How to pronounce antigen (audio)

adjective

antigenically

ˌan-ti-ˈje-ni-k(ə-)lē How to pronounce antigen (audio)

adverb

antigenicity

ˌan-ti-jə-ˈni-sə-tē How to pronounce antigen (audio)

noun

Did you know?

An antibody is a protein produced by your immune system to fight outside invaders. Since the enemy substance actually triggers the production of antibodies, such substances are called antigens—anti- being short for antibody, and -gen meaning "producer". (In a similar way, an allergen produces an allergy, and a pathogen produces a pathology or disease.) Antigens are often rodlike structures that stick out from the surface of an invading organism—usually a bacterium or a virus—and allow it to attach itself to cells in the invaded body. But unfortunately for them, in doing so they let the immune system know they're present, and the body is flooded with an army of Pac-Man-like antibodies.

Example Sentences

Recent Examples on the Web While the demand for conventional antigen tests will continue to decrease, there will be a need for new diagnostics that can differentiate various causes of cold and flu-like upper repository symptoms.

Steven Phillips, STAT, 6 Sep. 2022 Each order includes eight rapid antigen tests that will come in two separate packages, four to each package.

Maggie O'neill, SELF, 29 Aug. 2022 The rapid antigen tests were self-administered and could deliver results within minutes.

Los Angeles Times, 29 Aug. 2022 For rapid antigen tests, serial testing is the name of the game.

Sumathi Reddy, WSJ, 29 Aug. 2022 New Zealand requires most international travelers to show proof of vaccination and take two rapid antigen tests upon arrival.

Zach Wichter, USA TODAY, 26 Aug. 2022 Quidel makes respiratory diagnostic tests tied to flu season, including a rapid antigen tests for COVID-19.

San Diego Union-Tribune, 25 Aug. 2022 Japan requires a nucleic acid amplification test, such as a PCR test, which tends to be less accessible and more expensive than at-home rapid antigen tests.

Julia Mio Inuma, Washington Post, 24 Aug. 2022 Previously, the Food and Drug Administration had advised taking two rapid antigen tests over two or three days to rule out infection.

Matthew Perrone, ajc, 11 Aug. 2022 See More

单词	antigen
释义	antigen noun an·ti·gen ˈan-ti-jən -ˌjen : any substance (such as an immunogen or a hapten) foreign to the body that evokes an immune response either alone or after forming a complex with a larger molecule (such as a protein) and that is capable of binding with a product (such as an antibody or T cell) of the immune response antigenic ˌan-ti-ˈje-nik adjective antigenically ˌan-ti-ˈje-ni-k(ə-)lē adverb antigenicity ˌan-ti-jə-ˈni-sə-tē noun Did you know? An antibody is a protein produced by your immune system to fight outside invaders. Since the enemy substance actually triggers the production of antibodies, such substances are called antigens—anti- being short for antibody, and -gen meaning "producer". (In a similar way, an allergen produces an allergy, and a pathogen produces a pathology or disease.) Antigens are often rodlike structures that stick out from the surface of an invading organism—usually a bacterium or a virus—and allow it to attach itself to cells in the invaded body. But unfortunately for them, in doing so they let the immune system know they're present, and the body is flooded with an army of Pac-Man-like antibodies. Example Sentences Recent Examples on the Web While the demand for conventional antigen tests will continue to decrease, there will be a need for new diagnostics that can differentiate various causes of cold and flu-like upper repository symptoms. Steven Phillips, STAT, 6 Sep. 2022 Each order includes eight rapid antigen tests that will come in two separate packages, four to each package. Maggie O'neill, SELF, 29 Aug. 2022 The rapid antigen tests were self-administered and could deliver results within minutes. Los Angeles Times, 29 Aug. 2022 For rapid antigen tests, serial testing is the name of the game. Sumathi Reddy, WSJ, 29 Aug. 2022 New Zealand requires most international travelers to show proof of vaccination and take two rapid antigen tests upon arrival. Zach Wichter, USA TODAY, 26 Aug. 2022 Quidel makes respiratory diagnostic tests tied to flu season, including a rapid antigen tests for COVID-19. San Diego Union-Tribune, 25 Aug. 2022 Japan requires a nucleic acid amplification test, such as a PCR test, which tends to be less accessible and more expensive than at-home rapid antigen tests. Julia Mio Inuma, Washington Post, 24 Aug. 2022 Previously, the Food and Drug Administration had advised taking two rapid antigen tests over two or three days to rule out infection. Matthew Perrone, ajc, 11 Aug. 2022 See More Word History Etymology German, from French antigène, from anticorps antibody + -gène -gen First Known Use 1908, in the meaning defined above Phrases Containing antigen antigen-presenting cell prostate-specific antigen carcinoembryonic antigen human leukocyte antigen antigen-presenting cell prostate-specific antigen carcinoembryonic antigen human leukocyte antigen Medical Definition antigen noun an·ti·gen ˈant-i-jən : any substance (as an immunogen or a hapten) foreign to the body that evokes an immune response either alone or after forming a complex with a larger molecule (as a protein) and that is capable of binding with a product (as an antibody or T cell) of the immune response
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antigen

noun

Did you know?

Example Sentences

Word History

Phrases Containing antigen

Medical Definition

noun