cyclostome •brome, chrome, comb, Crome, dome, foam, gnome, holm, Holme, hom, home, Jerome, loam, Nome, ohm, om, roam, Rome, tome •Guillaume • biome • Beerbohm •radome • astrodome • Styrofoam •megohm • Stockholm • Bornholm •motorhome • backcomb • honeycomb •cockscomb, coxcomb •toothcomb • genome • gastronome •metronome • syndrome • palindrome •polychrome • Nichrome •monochrome • velodrome •hippodrome • aerodrome •cyclostome • rhizome

cyclostome (sī´kləstōm´), jawless fish, member of the vertebrate superclass Cyclostomata (see Chordata). This group includes the hagfish and the lamprey.