12-letter words that end in al
- radiological — of or relating to radiology.
- raw material — material before being processed or manufactured into a final form.
- rear admiral — U.S. Navy, Coast Guard. a commissioned officer next in rank below a vice-admiral.
- recreational — of or relating to recreation: recreational facilities in the park.
- rectirostral — (of a bird) having a straight bill.
- reputational — the estimation in which a person or thing is held, especially by the community or the public generally; repute: a man of good reputation.
- responsorial — of or relating to response; responsive
- retinotectal — of or relating to the retina and the tectum
- retrolingual — situated behind or near the base of the tongue.
- revelational — the act of revealing or disclosing; disclosure.
- rheumatismal — of or relating to rheumatism
- rhinocerical — of or relating to the rhinoceros
- rhinorrhoeal — of or relating to rhinorrhoea
- rhombohedral — a solid bounded by six rhombic planes.
- rhopaloceral — of or relating to creatures from the Rhopalocera division of animals, which includes all butterflies, distinguished from moths on account of their club-shaped antennae
- rideau canal — a waterway in SE Ontario, Canada, connecting the Ottawa Riverin Ottawa to Lake Ontario in Kingston. 125 miles (202 km) long.
- risk capital — venture capital.
- rock crystal — transparent quartz, especially when colorless.
- saccharoidal — having a crystalline or granular texture: said esp. of some sandstones and marbles
- salutational — relating to salutation
- sat sri akal — a salutation used in India
- scatological — the study of or preoccupation with excrement or obscenity.
- schistosomal — relating to or characteristic of a schistosome or member of the genus Schistosoma
- scopes trial — John Thomas, 1901–70, U.S. high-school teacher whose teaching of the Darwinian theory of evolution became a cause célèbre (Scopes Trial or Monkey Trial) in 1925.
- secobarbital — a white, odorless, slightly bitter powder, C 1 2 H 1 8 N 2 O 3 , used as a sedative and hypnotic.
- seed capital — small sum invested in new business
- self-renewal — the act of renewing.
- semiarboreal — (of animals) spending half or some of their life in trees
- semicolonial — partly colonial
- semimystical — somewhat mystical; having a mystical quality to a partial degree
- semiofficial — having some degree of official authority.
- semiological — the study of signs and symbols; semiotics.
- semitropical — subtropical.
- septilateral — having seven sides.
- shot on goal — a shot that enters the goal or would have entered the goal if it had not been blocked by the goalkeeper or another defensive player.
- silver medal — a medal, traditionally of silver or silver in color, awarded to a person or team finishing second in a competition, meet, or tournament.
- single modal — modal (def 3).
- smart casual — (of clothing) neat or professional-looking but fairly casual: The dress code for the event will be smart casual.
- smoke signal — If someone such as a politician or businessman sends out smoke signals, they give an indication of their views and intentions. This indication is often not clear and needs to be worked out.
- snow crystal — a crystal of ice sufficiently heavy to fall from the atmosphere.
- sociological — of, relating to, or characteristic of sociology and its methodology.
- sophomorical — characteristic of a sophomore
- speciational — relating to speciation
- spectatorial — a person who looks on or watches; onlooker; observer.
- sphincterial — relating to a sphincter
- spinal canal — the tube formed by the vertebrae in which the spinal cord and its membranes are located.
- spirochaetal — resulting from spirochaetes
- stenothermal — (of animals or plants) able to exist only within a narrow range of temperature
- sternocostal — of, relating to, or situated between the sternum and ribs.
- storm signal — a visual signal, as a flag, giving advance notice of a heavy storm, used especially along coastal areas.