Term: ammonia clock: an atomic clock based on vibrational frequency of the nitrogen atom in the ammonia molecule
Broader: atomic clock: a timepiece that derives its time scale from the vibration of atoms or molecules | Unrelated: valve: one of the paired hinged shells of certain molluscs and of brachiopods
Broader: atomic clock: a timepiece that derives its time scale from the vibration of atoms or molecules | Unrelated: transmutation: (physics) the change of one chemical element into another (as by nuclear decay or radioactive bombardment)
Broader: atomic clock: a timepiece that derives its time scale from the vibration of atoms or molecules | Unrelated: heart disease: a disease of the heart
Broader: atomic clock: a timepiece that derives its time scale from the vibration of atoms or molecules | Unrelated: hundred: ten 10s
Broader: atomic clock: a timepiece that derives its time scale from the vibration of atoms or molecules | Unrelated: duck: flesh of a duck (domestic or wild)
Broader: atomic clock: a timepiece that derives its time scale from the vibration of atoms or molecules | Unrelated: indirect discourse: a report of a discourse in which deictic terms are modified appropriately (e.g., )
Broader: atomic clock: a timepiece that derives its time scale from the vibration of atoms or molecules | Unrelated: nimbleness: intelligence as revealed by quickness and alertness of mind
Broader: atomic clock: a timepiece that derives its time scale from the vibration of atoms or molecules | Unrelated: striping: the act of marking with stripes
Broader: atomic clock: a timepiece that derives its time scale from the vibration of atoms or molecules | Unrelated: tinfoil: foil made of tin or an alloy of tin and lead
Broader: atomic clock: a timepiece that derives its time scale from the vibration of atoms or molecules | Unrelated: barrel knot: a knot used for tying fishing leaders together; the ends of the two leaders are wrapped around each other two or three times