fermion
— Noun
– English
~ any particle that obeys Fermi-Dirac statistics and is subject to the Pauli exclusion principle
fermium
— Noun
– English
~ a radioactive transuranic metallic element produced by bombarding plutonium with neutrons
fan fern
— Noun
– English
~ large Australasian fern with fanlike repeatedly forked fronds; sometimes placed in genus Gleichenia
fern family
— Noun
– English
~ families of ferns and fern allies
fern ally
— Noun
– English
~ pteridophytes of other classes than Filicopsida
felt fern
— Noun
– English
~ east Asian fern having fronds shaped like tongues; sometimes placed in genus Cyclophorus
fern
— Noun
– English
~ any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores