Term: nitrobacterium: any of the bacteria in the soil that take part in the nitrogen cycle; they oxidize ammonium compounds into nitrites or oxidize nitrites into nitrates
Candidate hypernym: bacteria: (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants → 1
Candidate hypernym: erianthus: genus of reedlike grasses having spikes crowded in a panicle covered with long silky hairs → 0
Candidate hypernym: nautilus: a submarine that is propelled by nuclear power → 0
Candidate hypernym: genus protoceratops: small horned dinosaurs → 0
Candidate hypernym: cervidae: deer: reindeer; moose or elks; muntjacs; roe deer → 0
Candidate hypernym: expense account: an account to which salespersons or executives can charge travel and entertainment expenses → 0
Candidate hypernym: herbage: succulent herbaceous vegetation of pasture land → 0
Candidate hypernym: amputation: a condition of disability resulting from the loss of one or more limbs → 0
Candidate hypernym: parol evidence rule: a rule that oral evidence cannot be used to contradict the terms of a written contract → 0
Candidate hypernym: pinko: a person with mildly leftist political views → 0
Candidate hypernym: waterspout: a tornado passing over water and picking up a column of water and mist → 0