Term: opsonin: an antibody in blood serum that attaches to invading microorganisms and other antigens to make them more susceptible to the action of phagocytes
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: dry fly: a fly (fisherman's lure) that skims the surface of the water
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: allocution: (rhetoric) a formal or authoritative address that advises or exhorts
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: sprag: a chock or bar wedged under a wheel or between the spokes to prevent a vehicle from rolling down an incline
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: anomaly: a person who is unusual
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: spark arrester: electrical device to reduce sparking when electrical contacts are opened or closed
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: staggerer: someone who walks unsteadily as if about to fall
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: be-all and end-all: the essential factor; the all-important element; the supreme aim
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: secretary of war: head of a former executive department; combined with the Navy Secretary to form the Defense Secretary in 1947
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: psophiidae: trumpeters
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: nothofagus: beeches of temperate southern hemisphere except Africa: southern beech