Term: femtosecond: one quadrillionth (10^-15) of a second; one thousandth of a picosecond
Candidate hypernym: time unit: a unit for measuring time periods → 1
Candidate hypernym: value: the quality (positive or negative) that renders something desirable or valuable → 0
Candidate hypernym: dot matrix: a rectangular matrix of dots from which written characters can be formed → 0
Candidate hypernym: maratha: a member of a people of India living in Maharashtra → 0
Candidate hypernym: rheumatoid arthritis: a chronic autoimmune disease with inflammation of the joints and marked deformities; something (possibly a virus) triggers an attack on the synovium by the immune system, which releases cytokines that stimulate an inflammatory reaction that can lead to the destruction of all components of the joint → 0
Candidate hypernym: brinkmanship: the policy of pushing a dangerous situation to the brink of disaster (to the limits of safety) → 0
Candidate hypernym: gamma acid: a crystalline acid used to make azo dyes → 0
Candidate hypernym: speed: changing location rapidly → 0
Candidate hypernym: electric heater: a small electric space heater → 0
Candidate hypernym: umbrella tree: erect evergreen shrub or small tree of Australia and northern New Guinea having palmately compound leaves → 0
Candidate hypernym: ixodes neotomae: a tick that usually does not bite humans; transmits Lyme disease spirochete to dusky-footed wood rats → 0