Term: polypodiaceae: ferns: a large family that in some classification systems has been subdivided into several families (including Aspleniaceae and Blechnaceae and Davalliaceae and Dennstaedtiaceae and Dryopteridaceae and Oleandraceae and Pteridaceae)
Broader: fern family: families of ferns and fern allies | Unrelated: toll: a fee levied for the use of roads or bridges (used for maintenance)
Broader: fern family: families of ferns and fern allies | Unrelated: leftism: the ideology of the political left; belief in or support of the tenets of the political left
Broader: fern family: families of ferns and fern allies | Unrelated: sting operation: a complicated confidence game planned and executed with great care (especially an operation implemented by undercover agents to apprehend criminals)
Broader: fern family: families of ferns and fern allies | Unrelated: glibness: a kind of fluent easy superficiality
Broader: fern family: families of ferns and fern allies | Unrelated: modality: a particular sense
Broader: fern family: families of ferns and fern allies | Unrelated: fever tree: ornamental shrub or small tree of swampy areas in southwestern United States having large pink or white sepals and yielding Georgia bark for treating fever
Broader: fern family: families of ferns and fern allies | Unrelated: binary star: a system of two stars that revolve around each other under their mutual gravitation
Broader: fern family: families of ferns and fern allies | Unrelated: artificial blood: a liquid that can carry large amounts of oxygen and can serve as a temporary substitute for blood
Broader: fern family: families of ferns and fern allies | Unrelated: football team: a team that plays football
Broader: fern family: families of ferns and fern allies | Unrelated: rayleigh disk: an acoustic radiometer consisting of a light disk suspended from a quartz thread; when exposed to a progressive sound wave its torque can measure velocity