| roller | a grounder that rolls along the infield |
broad jump
long jump | the act of jumping as far as possible from a running start |
| roller skating | skating on wheels |
| eastern kingbird | a kingbird that breeds in North America and winters in tropical America, distinguished by a white band on the tip of the tail |
eastern meadowlark
Sturnella magna | a meadowlark of eastern North America |
long-billed marsh wren
Cistothorus palustris | American wren that inhabits tall reed beds |
sedge wren short-billed marsh wren
Cistothorus platensis | small American wren inhabiting wet sedgy meadows |
eastern red-backed salamander
Plethodon cinereus | common salamander of eastern North America |
eastern cricket frog
Acris gryllus | a cricket frog of eastern United States |
eastern narrow-mouthed toad
Gastrophryne carolinensis | small toad of southeastern United States |
eastern fence lizard
pine lizard
Sceloporus undulatus | small active lizard of United States and north to British Columbia |
hadrosaur
hadrosaurus
duck-billed dinosaur | any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet, may have been partly aquatic |
eastern ground snake
Potamophis striatula
Haldea striatula | in some classifications placed in genus Haldea, small reddish-grey snake of eastern North America |
eastern indigo snake
Drymarchon corais couperi | a variety of indigo snake |
eastern coral snake
Micrurus fulvius | ranges from Central America to southeastern United States |
roller tumbler
tumbler pigeon | pigeon that executes backward somersaults in flight or on the ground |
black-billed cuckoo
Coccyzus erythropthalmus | North American cuckoo, builds a nest and rears its own young |
| roller | Old World bird that tumbles or rolls in flight, related to kingfishers |
European roller
Coracias garrulus | common European blue-and-green roller with a reddish-brown back |
| ground roller | Madagascan roller with terrestrial and crepuscular habits that feeds on e.g. insects and worms |
ivorybill
ivory-billed woodpecker
Campephilus principalis | large black-and-white woodpecker of southern United States and Cuba having an ivory bill, nearly extinct |
platypus
duckbill duckbilled platypus
duck-billed platypus
Ornithorhynchus anatinus | small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet, only species in the family Ornithorhynchidae |
eastern dasyure
Dasyurus quoll | a variety of dasyure |
boatbill
boat-billed heron
broadbill Cochlearius cochlearius | tropical American heron related to night herons |
razorbill
razor-billed auk
Alca torda | black-and-white northern Atlantic auk having a compressed sharp-edged bill |
thick-billed murre
Uria lomvia | a variety of murre |
pied-billed grebe
Podilymbus podiceps | American grebe having a black-banded whitish bill |
eastern pipistrel
Pipistrellus subflavus | one of the smallest bats of eastern North America |
leaf roller
leafoller | moth whose larvae form nests by rolling and tying leaves with spun silk |
eastern cottontail
Sylvilagus floridanus | widely distributed in United States except northwest and far west regions |
eastern woodrat
Neotoma floridana | large greyish-brown wood rat of the southeastern United States |
eastern grey squirrel
eastern gray squirrel
cat squirrel Sciurus carolinensis | common medium-large squirrel of eastern North America, now introduced into England |
fox squirrel
eastern fox squirrel
Sciurus niger | exceptionally large arboreal squirrel of eastern United States |
eastern chipmunk
hackee
striped squirrel
ground squirrel Tamias striatus | small striped semiterrestrial eastern American squirrel with cheek pouches |
eastern lowland gorilla
Gorilla gorilla grauri | a kind of gorilla |
eastern chimpanzee
Pan troglodytes schweinfurthii | long-haired chimpanzees of eastentral Africa, closely related to the central chimpanzees |
ball bearing
needle bearing
roller bearing | bearings containing small metal balls |
| broad arrow | an arrow with a wide barbed head |
| broad gauge | a railroad track (or its width) broader than the standard . inches |
| broad hatchet | a short-handled hatchet with a broad blade opposite a hammerhead |
curler
hair curler
roller crimper | a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it, a woman with her head full of curlers is not a pretty sight |
| garden roller | heavy cast-iron cylinder used to flatten lawns |
| paint roller | a roller that has an absorbent surface used for spreading paint |
rock bit
roller bit | a drill bit that has hardened rotating rollers |
| roller | a cylinder that revolves |
| roller | a small wheel without spokes (as on a roller skate) |
| roller bandage | bandage consisting of a strip of sterile fabric (of variable width) rolled into a cylinder to facilitate application |
| roller blind | a window shade that rolls up out of the way |
roller coaster
big dipper
chute-thehute | elevated railway in an amusement park (usually with sharp curves and steep inclines) |
| roller skate | a shoe with pairs of rollers fixed to the sole |