noun, plural an·ti·bod·ies.
Examples from the Web for antibody
For example, though I had chicken pox decades ago, I still have antibody to chicken pox.
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.
Preliminary skin-tests of the antibody suspension showed no sign of untoward reaction.
Controls were needed, to be certain that the antibody suspension alone was bringing about the changes seen and not something else.
But when they had tried to apply the antibody in the afflicted patients, the response had been totally unexpected.
British Dictionary definitions for antibody
noun plural -bodies
Word Origin and History for antibody
"substance developed in blood as an antitoxin," 1901, a hybrid formed from anti- "against" + body. Probably a translation of German Antikörper, condensed from a phrase such as anti-toxisches Körper "anti-toxic body."
Medicine definitions for antibody
Science definitions for antibody
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.