Term: bladder fern: any fern of the genus Cystopteris characterized by a hooded indusium or bladderlike membrane covering the sori
Broader: fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores | Unrelated: bedlam: pejorative terms for an insane asylum
Broader: fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores | Unrelated: plaintiveness: expressing sorrowfulness
Broader: fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores | Unrelated: reversible process: any process in which a system can be made to pass through the same states in the reverse order when the process is reversed
Broader: fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores | Unrelated: allspice: ground dried berrylike fruit of a West Indian allspice tree; suggesting combined flavors of cinnamon and nutmeg and cloves
Broader: fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores | Unrelated: spontaneous combustion: ignition of a substance (as oily rags) resulting from an internal oxidation process
Broader: fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores | Unrelated: integrated circuit: a microelectronic computer circuit incorporated into a chip or semiconductor; a whole system rather than a single component
Broader: fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores | Unrelated: plunderage: the act of plundering (especially the embezzlement of goods on shipboard)
Broader: fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores | Unrelated: hooded seal: medium-sized blackish-grey seal with large inflatable sac on the head; of Arctic and northern Atlantic waters
Broader: fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores | Unrelated: expansion bit: a bit with a cutting blade that can be adjusted to different sizes
Broader: fern: any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores | Unrelated: americana: any artifact (such as books or furniture or art) that is distinctive of America