opsono-, opson-, opso-; opsino-; opsoni; -opsony +

(Greek: boiled meat; to buy food; to purchase provisions; shopping)

"Something to accompany bread to make it more palatable"; hence, "condiment, relish". Also used with the biochemical suffix -in which is used in naming antibiotics, the idea being that opsonin acts as a "condiment" to make bacteria more "palatable" to phagocytes.

duopsony (s), duopsonies (pl) (noun forms)
1. A situation in which two competing buyers exert controlling influence over many sellers.
2. A stock-market condition wherein two rival buyers exert a controlling influence on numerous sellers.
monopsonist (s), monopsonists (pl) (noun forms)
A market condition that exists when there is one buyer.
monopsonistic (adjective)
A reference to a market in which products or services are offered by several sellers but there is only one buyer.
monopsony (s), monopsonies (pl) (noun forms)
1. A situation in which a particular type of product or service is only being bought or used by one customer: "An example of pure monopsony is a firm that is the only buyer of workers in an isolated town where the company would be able to pay lower wages to its employees than it would if other firms were present."
2. A market situation in which the products or services of several sellers is sought by just one buyer.
3. A market in which goods or services are offered by several sellers but there is only one buyer.
4. A condition in which there is only one buyer for the product of a large number of sellers.
5. Etymology: from Ancient Greek ????? (monos), "single" + ?????? (opsonia), "purchase".
oligopsonistic (adjective)
A descriptive word for an economic condition in which there are so few buyers for a product that one buyer's actions can have a significant impact on prices and the market in general.
oligopsony (s), oligopsonies (pl) (noun forms)
1. A market condition in which purchases are so few that the actions of any one of them can materially affect prices and the costs that competitors must pay.
2. Markets with a very limited number of buyers.
3. An economic condition in which there are so few suppliers of a particular product that one supplier's actions can have a significant impact on prices and on its competitors.
opsomania (noun)
1. A pathological or morbid yearning for delicacies or for some specific food.
2. A pathological craving for sweets, such as may occur in binge-eating syndrome.
3. A longing for a particular article of diet, or for highly seasoned food.
4. A morbid craving for rich foods and delicate fare.
opsomaniac (s), opsmaniacs (pl) (noun forms)
Those who love some particular kind of food to the point of insanity.
opsonia (noun)
That which relates to, is produced by, or involves opsonin (antibodies in blood serum that attach to invading microorganisms and other antigens to make them easier for phagocytes to surround and to absorb waste material and harmful microorganisms).
opsonic (adjective)
Pertaining to opsonin or a component of blood serum which acts upon invading cells or bacteria; so as, to assist in the absorption by the phagocytes (cells that engulf and digest debris and invading micro-organisms).
opsonic index (s), opsonic indexes (pl) (noun forms)
A measure of the relative content of the antibody opsonin in the blood of a person with an infectious disease, as compared to te opsonin content in normal blood.
opsoniferous (adjective)
A reference to that which bears or produces opsonin or an antibody that when it is attached to foreign material; such as, microorganisms, or other antigens, enhances phagocytosis of that substance with leukocytes and other macrophages (cells that engulf and digest invading microorganisms).
opsonify, opsonifies, opsonified, opsonifying (verb forms)
1. To make bacteria more liable to destruction by phagocytes.
2. To modify bacteria and other cells to make them more susceptible to phagocytosis.

Phagocytosis is the process by which a cell engulfs particles; such as, bacteria, other microorganisms, aged red blood cells, foreign matter, etc.

The principal phagocytes (cells that can engage in phagocytosis) include the neutrophils and monocytes (types of white blood cells or cells that the body makes to help fight infections).

opsonin (s), opsonins (pl) (noun forms)
1. Protein fragments in the blood that bind to the surface of an invading antibody and promotes its destruction by white blood cells.
2. In medicine, any substance that binds to particulate antigens and induces their phagocytosis by macrophages and neutrophils.
3. Etymology: from the early 20th century and coined from Latin opsonare, "to cater, to buy provisions"; from Greek opsonein, "condiment, delicacy".
opsonistic (adjective)
A reference to making bacteria or other cells more susceptible to the actions of phagocytes.