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
Candidate hypernym: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) → 1
Candidate hypernym: dry fly: a fly (fisherman's lure) that skims the surface of the water → 0
Candidate hypernym: allocution: (rhetoric) a formal or authoritative address that advises or exhorts → 0
Candidate hypernym: sprag: a chock or bar wedged under a wheel or between the spokes to prevent a vehicle from rolling down an incline → 0
Candidate hypernym: anomaly: a person who is unusual → 0
Candidate hypernym: spark arrester: electrical device to reduce sparking when electrical contacts are opened or closed → 0
Candidate hypernym: staggerer: someone who walks unsteadily as if about to fall → 0
Candidate hypernym: be-all and end-all: the essential factor; the all-important element; the supreme aim → 0
Candidate hypernym: secretary of war: head of a former executive department; combined with the Navy Secretary to form the Defense Secretary in 1947 → 0
Candidate hypernym: psophiidae: trumpeters → 0
Candidate hypernym: nothofagus: beeches of temperate southern hemisphere except Africa: southern beech → 0