Term: rubidium-strontium dating: geological dating based on the proportions of radioactive rubidium into its decay product strontium; radioactive rubidium has a half-life of 47,000,000,000 years
Candidate hypernym: investigation: the work of inquiring into something thoroughly and systematically → 1
Candidate hypernym: theory of dissociation: (chemistry) theory that describes aqueous solutions in terms of acids (which dissociate to give hydrogen ions) and bases (which dissociate to give hydroxyl ions); the product of an acid and a base is a salt and water → 0
Candidate hypernym: inferior alveolar artery: the alveolar artery that goes through the mandibular canal to supply the lower teeth → 0
Candidate hypernym: harassing fire: fire designed to disturb the rest of enemy troops and to curtail movement and to lower enemy morale → 0
Candidate hypernym: genocide: systematic killing of a racial or cultural group → 0
Candidate hypernym: simaroubaceae: chiefly tropical trees and shrubs with bitter bark having dry usually one-seeded winged fruit → 0
Candidate hypernym: slit: a narrow fissure → 0
Candidate hypernym: therapeutic abortion: a legally induced abortion for medical reasons (as when the mother's life is threatened) → 0
Candidate hypernym: gin sling: a sling made with gin → 0
Candidate hypernym: beauty spot: a spot that is worn on a lady's face for adornment → 0
Candidate hypernym: switchman: a man who operates railroad switches → 0