fishpole bamboo
- n small bamboo of southeastern China having slender culms flexuous when young
fishtail bit
- n a drilling bit with cutting edges usually hardened against wear
fishtail palm
- n attractive East Indian palm having distinctive bipinnate foliage
fishworm
- n terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers
fission
- n reproduction of some unicellular organisms by division of the cell into two more or less equal parts
- n a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
fission bomb
- n a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239)