Term: psilopsida: whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs
Candidate hypernym: class: (biology) a taxonomic group containing one or more orders → 1
Candidate hypernym: reaction: extreme conservatism in political or social matters → 0
Candidate hypernym: line coach: an assistant football coach in charge of the linemen → 0
Candidate hypernym: horsehair: hair taken from the mane or tail of a horse → 0
Candidate hypernym: sitting: a session as of a legislature or court → 0
Candidate hypernym: satyr play: an ancient Greek burlesque with a chorus of satyrs → 0
Candidate hypernym: welsh springer spaniel: a red-and-white breed slightly smaller than the English springer spaniel → 0
Candidate hypernym: imperialism: any instance of aggressive extension of authority → 0
Candidate hypernym: perpetual motion machine: a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy → 0
Candidate hypernym: jazz band: a small band of jazz musicians → 0
Candidate hypernym: madrigal: an unaccompanied partsong for 2 or 3 voices; follows a strict poetic form → 0