OPSONIST Meaning and
Definition
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An opsonist is an important term in immunology, referring to a substance or agent that enhances the process of phagocytosis. Phagocytosis is a vital defense mechanism in the immune system, whereby specialized cells called phagocytes engulf and digest pathogens, dead cells, and other foreign particles.
The role of opsonists is to tag or mark the foreign particles to be ingested by the phagocytes, thereby facilitating their recognition and uptake. They accomplish this by binding to the surface of the pathogens or particles, acting as a sort of molecular handle that improves the adherence of phagocytes to the invaders. Opsonists can be antibodies, such as immunoglobulins, or other molecules like complement proteins.
By acting as opsonins, these molecules greatly enhance the efficiency and speed of phagocytosis, enabling the immune system to better combat infections. Opsonization plays a crucial role in both innate and adaptive immunity, promoting the removal of pathogens and antigens from the body.
The discovery and understanding of opsonins have had significant implications in the field of immunology and disease management. Techniques that manipulate the opsonization process have been developed to boost immune responses or target specific pathogens. Therefore, opsonists play a pivotal role in the complex network of the immune system, facilitating the identification and elimination of foreign substances that threaten the body's well-being.
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One who employs opsonic technique.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for OPSONIST
- optomist
- ipsonist
- kpsonist
- lpsonist
- ppsonist
- 0psonist
- 9psonist
- oosonist
- olsonist
- o-sonist
- o0sonist
- opaonist
- opzonist
- opxonist
- opdonist
- opeonist
- opwonist
- opsinist
- opsknist
- opslnist
Etymology of OPSONIST
The word "opsonist" has its roots in the Greek language. It is derived from the Greek word "opsōneîn", which means "to buy provisions" or "to cater food". The term "opsonistēs" (ὀψωνιστής) refers to a person who provides or prepares food for others. In ancient Greece, opsonists were individuals who sold or cooked food, often specializing in certain delicacies or specific cuisines. Over time, the term "opsonist" has been adopted in English to signify someone who prepares or sells food, particularly as a professional cook or chef.
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