ropaxes
plural of ropax

rosamine
Any of a class of fluorone dyes related to rhodamine but lacking a carboxylic acid group on the attached benzene ring

rosamines
plural of rosamine

roseocardin
A cardiotonic cyclodepsipeptide present in the fungus Trichothecium roseum

roset
Rare spelling of rosette.

rosets
plural of roset

rosette
An element or ornament resembling a rose, especially on a wall or other surface, mostly for decorative purposes.
An element or ornament resembling a rose, especially on a wall or other surface, mostly for decorative purposes.
An imitation of a rose made of ribbon or other material, worn as an ornament or symbol, especially:
An imitation of a rose made of ribbon or other material, worn as an ornament or symbol, especially:
An imitation of a rose made of ribbon or other material, worn as an ornament or symbol, especially:
A decorative inlay surrounding the sound hole of a guitar.
A red color.
A rose burner.
One or more whorls of leaves, clustered tightly at the base of a plant.
A plant growth form in which the plant grows outward in all directions for a short distance, producing a small round shape.
Any structure having a flowerlike form; especially, the group of five broad ambulacra on the upper side of the spatangoid and clypeastroid sea urchins.
A flowerlike color marking, as on the leopard.
A floral pattern in latte art.
A clustered formation of tumor cells.
A thin, cookie-like, deep-fried Scandinavian pastry, made using an iron, which resembles a rose blossom.
A rose shape piped using frosting, most commonly buttercream.
A form of knot.
A disc formed by throwing water on molten metal.
A rosette sampler.
Synonym of worm-star.

rosettes
plural of rosette

rostra
plural of rostrum

rostrum
A dais, pulpit, or similar platform for a speaker, conductor, or other performer.
A platform for a film or television camera.
The projecting prow of a rowed warship, such as a trireme.
The beak.
The beak-shaped projection on the head of insects such as weevils.
The snout of a dolphin.
The oral or nasal region of a human used for anatomical location (i.e. rostral).
Any beak-like extension.
The inner segment of the coronal lobes in asclepiads.

rostrums
plural of rostrum

rotaplane
An aircraft which creates lift by means of rotors

rotaplanes
plural of rotaplane

roti
A kind of unleavened flatbread commonly consumed in South Asia and the Caribbean.

rotis
plural of roti

rotodyne
An aircraft that has both wings and rotors

rotodynes
plural of rotodyne

rotorcraft
Any aircraft that obtains its lift from rotors.

rotorcrafts
plural of rotorcraft

rotti
Alternative form of roti (“type of flatbread”).

rottis
plural of rotti

roundel
Anything having a round form; a round figure; a circle.
A roundelay or rondelay.
A small circular shield, sometimes not more than a foot in diameter, used by soldiers in the fourteenth and fifteenth centuries.
A circular spot; a charge in the form of a small coloured circle.
A circular insignia painted on an aircraft to identify its nationality or service.
A bastion of a circular form.
An umbrella.

roundell
Obsolete form of roundel.

roundells
plural of roundell

roundels
plural of roundel

roundhouse
A circular prison, especially a small local lockup or station house.
A traditional circular dwelling elevated on stilts with a conical roof found in part of Southeast Asia.
A prehistoric dwelling typical of northwest Europe in the Iron Age and Bronze Age.
The uppermost room or cabin of any note upon the stern of a ship.
A privy near the bow of a vessel, especially as reserved for officers.
A circular building in which locomotives are housed, sometimes with a turntable.
A punch or kick delivered with an exaggerated sweeping movement.
In the game of pinochle, a meld consisting of a queen and king in each of the four suits.

roundhouses
plural of roundhouse

roundle
Archaic form of roundel.

roundles
plural of roundle

roundtop
Alternative form of round-top.

roundtops
plural of roundtop

roundup
An activity in which cattle are herded together in order to be inspected, counted, branded or shipped.
The similar police activity of gathering together suspects.
The forcible gathering together of any particular group of people.
The summary to a news bulletin.
An upward curvature or convexity, as in the deck of a vessel.
The finishing of an arrangement.

roundups
plural of roundup

rouseabout
Alternative form of roustabout.

rouseabouts
plural of rouseabout

rousie
A rouseabout.

rousies
plural of rousie

roustabout
An unskilled laborer, especially at an oilfield, at a circus or on a ship.

roustabouts
plural of roustabout

routeings
plural of routeing

rov
Alternative form of rav.

rowboat
A small open boat propelled by oars (by rowing).

rowboaters
plural of rowboater

rowboatful
Enough to fill a rowboat.

rowboatfuls
plural of rowboatful

rowboats
plural of rowboat

rowboatsful
plural of rowboatful

rowlock
A usually U-shaped pivot attached to the gunwale (outrigger in a sport boat) of a boat that supports and guides an oar, and provides a fulcrum for rowing; an oarlock.
A brick, for example in a course of brickwork, that is laid vertically with its tallest but slimmest side facing down, and its shortest face facing the outside of the wall (oriented so that it is taller than it is wide).

rowlocks
plural of rowlock

rowndell
Obsolete form of roundel.

rowndells
plural of rowndell

rowney
A carthorse, load horse, or sumpter horse; a packhorse.

rowport
An opening in the side of small warships, such as sloops-of-war, placed near the surface of the water, to facilitate rowing in calm weather.

rowports
plural of rowport

royals
plural of royal

rs
plural of r

rts
plural of rt

rubai
A quatrain in classical Arabic, Persian, Turkic or Urdu poetry.

rubais
plural of rubai

rubaiyat
plural of rubai

rudder
An underwater vane used to steer a vessel. The rudder is controlled by means of a wheel, tiller or other apparatus (modern vessels can be controlled even with a joystick or an autopilot).
A control surface on the vertical stabilizer of a fixed-wing aircraft or an autogyro. On some craft, the entire vertical stabilizer comprises the rudder. The rudder is controlled by foot-operated control pedals.
A riddle or sieve.
That which resembles a rudder as a guide or governor; that which guides or governs the course.
The tail of an otter.

rudderholes
plural of rudderhole

rudderon
A type of control surface, usually found on flying wing aircraft, consisting of two pairs of panels (one mounted near each wingtip on the wing's trailing edge), with one lying on top of the other sandwich-style; to roll the aircraft, both panels on one wing deflect downwards (increasing the lift of that wing) and both panels on the othe wing deflect upwards (decreasing the lift of that wing), while, to yaw the aircraft, the panels on one wing split apart from each other (the upper panel deflects upwards, and the lower panel deflects downwards), increasing the drag on that wing.

rudderons
plural of rudderon

rudderpost
The rudderstock
A vertical support on an aircraft's tail section, that connects the rudder to the vertical stabilizer.

rudderposts
plural of rudderpost

rudders
plural of rudder

rulerships
plural of rulership

rullock
Alternative form of rowlock.

rullocks
plural of rullock

rumble
A low, heavy, continuous sound, such as that of thunder or a hungry stomach.
A street fight or brawl.
A rotating cask or box in which small articles are smoothed or polished by friction against each other.
A seat for servants, behind the body of a carriage.

rumbles
plural of rumble

rummies
plural of rummy

rummy
A card game with many rule variants, conceptually similar to mahjong.

rumrunner
An illegal smuggler of rum.
A smuggler of any alcoholic drink.
A boat used for smuggling illicit alcoholic drinks.
A go-fast boat; a powerboat of the type associated with the smuggling of rum.

rumrunners
plural of rumrunner