antibody

[ an-ti-bod-ee ]

/ ˈæn tɪˌbɒd i /

SEE SYNONYMS FOR antibody ON THESAURUS.COM

noun, plural an·ti·bod·ies.

any of numerous Y-shaped protein molecules produced by B cells as a primary immune defense, each molecule and its clones having a unique binding site that can combine with the complementary site of a foreign antigen, as on a virus or bacterium, thereby disabling the antigen and signaling other immune defenses. Abbreviation: Ab

antibodies of a particular type collectively.

Also called immunoglobulin.

Origin of antibody

First recorded in 1895–1900; anti- + body

WORDS THAT MAY BE CONFUSED WITH antibody

antibody , anybody

Words nearby antibody

antibiotic enterocolitis, antibiotics, resistance to, anti-Black, antiblastic, antibodies, antibody, antibody excess, antibody-mediated immunity, anti-Bolshevik, anti-British, antibugging

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for antibody

It can be done via a vaccine or via prior illness that you develop the antibodies.
Trump contradicts CDC director on vaccine; Biden says Americans shouldn’t trust Trump|Colby Itkowitz, Felicia Sonmez, John Wagner|September 16, 2020|Washington Post
We want better treatments, yes, but we also want to have enough people with antibodies against the virus that it can’t easily jump across different populations.
The problem with Trump’s ‘herd mentality’ line isn’t the verbal flub. It’s the mass death.|Philip Bump|September 16, 2020|Washington Post
Called nanobodies, these proteins help fight off invaders in the body, but are smaller and thought to be hardier than their human antibody kin.
Treatments that target the coronavirus in the nose might help prevent COVID-19|Laura Sanders|September 14, 2020|Science News
The idea is that a small enough dose of the virus will prevent the person from getting severely ill but will be enough that their immune system’s develop antibodies for future protection.
Wearing a mask could protect you from COVID-19 in more ways than you think|Kat Eschner|September 10, 2020|Popular Science

If plasma wasn’t tested for antibody levels, well—it was probably better than nothing.
Why the FDA authorized just one test to classify all Covid-19 plasma|Katherine Ellen Foley|September 9, 2020|Quartz
For example, though I had chicken pox decades ago, I still have antibody to chicken pox.
The ‘HIV-Cured Baby’ Distorts Hope|Kent Sepkowitz|March 7, 2014|DAILY BEAST
She was not known previously to be HIV infected but on testing was found to have antibody to the virus.
Let’s Not Rush to Call the HIV Baby Findings a ‘Cure’|Kent Sepkowitz|March 5, 2013|DAILY BEAST
That last checkup showed an antibody titer entirely too high for safety.
Category Phoenix|Boyd Ellanby
They climbed down the ladder once again, with the antibody flasks and sterile syringes strapped to their backs.
Star Surgeon|Alan Nourse
Preliminary skin-tests of the antibody suspension showed no sign of untoward reaction.
Star Surgeon|Alan Nourse
Controls were needed, to be certain that the antibody suspension alone was bringing about the changes seen and not something else.
Star Surgeon|Alan Nourse
But when they had tried to apply the antibody in the afflicted patients, the response had been totally unexpected.
Star Surgeon|Alan Nourse

British Dictionary definitions for antibody

antibody

/ (ˈæntɪˌbɒdɪ) /

noun plural -bodies

any of various proteins produced in the blood in response to the presence of an antigen. By becoming attached to antigens on infectious organisms antibodies can render them harmless or cause them to be destroyedSee also immunoglobulin

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

Medical definitions for antibody

antibody

[ ăn′tĭ-bŏd′ē ]

n.

A protein substance produced in the blood or tissues in response to a specific antigen, such as a bacterium or a toxin, that destroys or weakens bacteria and neutralizes organic poisons, thus forming the basis of immunity.

An immunoglobulin present in the blood serum or body fluids as a result of antigenic stimulus and interacting only with the antigen that induced it or with an antigen closely related to it.

Scientific definitions for antibody

antibody

[ ăn′tĭ-bŏd′ē ]

Any of numerous proteins produced by B lymphocytes in response to the presence of specific foreign antigens, including microorganisms and toxins. Antibodies consist of two pairs of polypeptide chains, called heavy chains and light chains, that are arranged in a Y-shape. The two tips of the Y are the regions that bind to antigens and deactivate them. Also called immunoglobulin

A Closer Look

Like other vertebrates, humans possess an effective immune system that uses antibodies to fight bacteria, viruses, and cancer cells. Antibodies are complex, Y-shaped protein molecules. The immune system's B lymphocytes, which are produced by the bone marrow, develop into plasma cells that can generate a huge variety of antibodies, each one capable of combining with and destroying an antigen, a foreign molecule. Antibodies react to very specific characteristics of different antigens, binding them to the top ends of their Y formation. Once the antibody and antigen combine, the antibodies deactivate the antigen or lead it to macrophages(a kind of white blood cell) that ingest and destroy it. High numbers of a particular antibody may persist for months after an invasion, eventually diminishing. However, the B cells can quickly manufacture more of the same antibody if exposure to the antigen recurs. Vaccines work by training B cells to recognize and react quickly to potential disease molecules.

单词	antibody
释义	antibody [ an-ti-bod-ee ] / ˈæn tɪˌbɒd i / SEE SYNONYMS FOR antibody ON THESAURUS.COM noun, plural an·ti·bod·ies. any of numerous Y-shaped protein molecules produced by B cells as a primary immune defense, each molecule and its clones having a unique binding site that can combine with the complementary site of a foreign antigen, as on a virus or bacterium, thereby disabling the antigen and signaling other immune defenses. Abbreviation: Ab antibodies of a particular type collectively. Also called immunoglobulin. Origin of antibody First recorded in 1895–1900; anti- + body WORDS THAT MAY BE CONFUSED WITH antibody antibody , anybody Words nearby antibody antibiotic enterocolitis, antibiotics, resistance to, anti-Black, antiblastic, antibodies, antibody, antibody excess, antibody-mediated immunity, anti-Bolshevik, anti-British, antibugging Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for antibody It can be done via a vaccine or via prior illness that you develop the antibodies. Trump contradicts CDC director on vaccine; Biden says Americans shouldn’t trust Trump\|Colby Itkowitz, Felicia Sonmez, John Wagner\|September 16, 2020\|Washington Post We want better treatments, yes, but we also want to have enough people with antibodies against the virus that it can’t easily jump across different populations. The problem with Trump’s ‘herd mentality’ line isn’t the verbal flub. It’s the mass death.\|Philip Bump\|September 16, 2020\|Washington Post Called nanobodies, these proteins help fight off invaders in the body, but are smaller and thought to be hardier than their human antibody kin. Treatments that target the coronavirus in the nose might help prevent COVID-19\|Laura Sanders\|September 14, 2020\|Science News The idea is that a small enough dose of the virus will prevent the person from getting severely ill but will be enough that their immune system’s develop antibodies for future protection. Wearing a mask could protect you from COVID-19 in more ways than you think\|Kat Eschner\|September 10, 2020\|Popular Science If plasma wasn’t tested for antibody levels, well—it was probably better than nothing. Why the FDA authorized just one test to classify all Covid-19 plasma\|Katherine Ellen Foley\|September 9, 2020\|Quartz For example, though I had chicken pox decades ago, I still have antibody to chicken pox. The ‘HIV-Cured Baby’ Distorts Hope\|Kent Sepkowitz\|March 7, 2014\|DAILY BEAST She was not known previously to be HIV infected but on testing was found to have antibody to the virus. Let’s Not Rush to Call the HIV Baby Findings a ‘Cure’\|Kent Sepkowitz\|March 5, 2013\|DAILY BEAST That last checkup showed an antibody titer entirely too high for safety. Category Phoenix\|Boyd Ellanby They climbed down the ladder once again, with the antibody flasks and sterile syringes strapped to their backs. Star Surgeon\|Alan Nourse Preliminary skin-tests of the antibody suspension showed no sign of untoward reaction. Star Surgeon\|Alan Nourse Controls were needed, to be certain that the antibody suspension alone was bringing about the changes seen and not something else. Star Surgeon\|Alan Nourse But when they had tried to apply the antibody in the afflicted patients, the response had been totally unexpected. Star Surgeon\|Alan Nourse British Dictionary definitions for antibody antibody / (ˈæntɪˌbɒdɪ) / noun plural -bodies any of various proteins produced in the blood in response to the presence of an antigen. By becoming attached to antigens on infectious organisms antibodies can render them harmless or cause them to be destroyedSee also immunoglobulin 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 Content related to antibody What Are Antibodies, And Do They Kill Viruses?Everyone is talking about testing for antibodies against COVID-19, so we've created a primer on antibodies and immunity, and their relation to viruses. READ MORE “Antibiotic” vs. “Abiotic” vs. “Antibody”: What Is The Difference?Antibiotics, antibodies, abiotic. If these terms confuse you, it's because they're frustratingly similar. So we've explained the minute differences for you. READ MORE Words related to antibody microorganism, disease, parasite, virus, plague, microbe, bug, bacterium, pathogen, antiserum, agglutinin, agglutinogen, vaccine, antigen, antibiotic, medicine, antiseptic, serum, preventive, antivenin Medical definitions for antibody antibody [ ăn′tĭ-bŏd′ē ] n. A protein substance produced in the blood or tissues in response to a specific antigen, such as a bacterium or a toxin, that destroys or weakens bacteria and neutralizes organic poisons, thus forming the basis of immunity. An immunoglobulin present in the blood serum or body fluids as a result of antigenic stimulus and interacting only with the antigen that induced it or with an antigen closely related to it. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for antibody antibody [ ăn′tĭ-bŏd′ē ] Any of numerous proteins produced by B lymphocytes in response to the presence of specific foreign antigens, including microorganisms and toxins. Antibodies consist of two pairs of polypeptide chains, called heavy chains and light chains, that are arranged in a Y-shape. The two tips of the Y are the regions that bind to antigens and deactivate them. Also called immunoglobulin A Closer Look Like other vertebrates, humans possess an effective immune system that uses antibodies to fight bacteria, viruses, and cancer cells. Antibodies are complex, Y-shaped protein molecules. The immune system's B lymphocytes, which are produced by the bone marrow, develop into plasma cells that can generate a huge variety of antibodies, each one capable of combining with and destroying an antigen, a foreign molecule. Antibodies react to very specific characteristics of different antigens, binding them to the top ends of their Y formation. Once the antibody and antigen combine, the antibodies deactivate the antigen or lead it to macrophages(a kind of white blood cell) that ingest and destroy it. High numbers of a particular antibody may persist for months after an invasion, eventually diminishing. However, the B cells can quickly manufacture more of the same antibody if exposure to the antigen recurs. Vaccines work by training B cells to recognize and react quickly to potential disease molecules. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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antibody

noun, plural an·ti·bod·ies.

Origin of antibody

WORDS THAT MAY BE CONFUSED WITH antibody

Words nearby antibody

Example sentences from the Web for antibody

British Dictionary definitions for antibody

noun plural -bodies

Content related to antibody

Words related to antibody

Medical definitions for antibody

n.

Scientific definitions for antibody

A Closer Look