8-letter words containing t, r, o, i
- armorist — a heraldry expert
- arointed — Simple past tense and past participle of aroint.
- aromatic — An aromatic plant or food has a strong, pleasant smell of herbs or spices.
- arsonist — An arsonist is a person who deliberately sets fire to a building or vehicle.
- arterio- — artery or arteries
- assistor — to give support or aid to; help: Please assist him in moving the furniture.
- asterion — (anatomy) The point on the side of the skull corresponding to the posterior end of the parietomastoid suture.
- asteroid — An asteroid is one of the very small planets that move around the sun between Mars and Jupiter.
- astroids — Plural form of astroid.
- atomiser — Modern commonwealth spelling of 'atomizer'.
- atomizer — a device for reducing a liquid to a fine spray, such as the nozzle used to feed oil into a furnace or an enclosed bottle with a fine outlet used to spray perfumes or medicines
- atrocity — An atrocity is a very cruel, shocking action.
- atrophia — Also, atrophia [uh-troh-fee-uh] /əˈtroʊ fi ə/ (Show IPA). Pathology. a wasting away of the body or of an organ or part, as from defective nutrition or nerve damage.
- atrophic — Also, atrophia [uh-troh-fee-uh] /əˈtroʊ fi ə/ (Show IPA). Pathology. a wasting away of the body or of an organ or part, as from defective nutrition or nerve damage.
- atropine — a poisonous alkaloid obtained from deadly nightshade, having an inhibitory action on the autonomic nervous system. It is used medicinally in pre-anaesthetic medication, to speed a slow heart rate, and as an emergency first-aid counter to exposure to chemical warfare nerve agents. Formula: C17H23NO3
- atropism — a condition caused by using atropine over a period of time
- attritor — A type of grinder in which particles suspended in water are moved by paddles and are ground as they collide with each other.
- auditors — Plural form of auditor.
- auditory — Auditory means related to hearing.
- autofire — (video games) A feature on a joystick that permits automatic firing, as though the player were repeatedly pressing the fire button.
- autogiro — a self-propelled aircraft supported in flight mainly by unpowered rotating horizontal blades
- aviators — Plural form of aviator.
- avigator — aerial navigation.
- azoturia — the condition of having excess nitrogen in the urine
- baritone — In music, a baritone is a man with a fairly deep singing voice that is lower than that of a tenor but higher than that of a bass.
- biforate — having two openings, pores, or perforations
- biometer — a device for measuring the production of carbon dioxide in functioning tissue
- biometry — the analysis of biological data using mathematical and statistical methods
- biotroph — a parasitic organism, esp a fungus
- birdshot — small pellets designed for shooting birds
- bisector — a straight line or plane that bisects an angle
- bistoury — a long surgical knife with a narrow blade
- boertjie — a person, esp a friend, often used as a term of address
- bonporti — Francesco Antonio. 1672–1749, Italian composer and violinist, noted esp for his Invenzioni (1712), a series of short instrumental suites
- boracite — a white mineral that forms salt deposits of magnesium borate and chloride in orthorhombic crystalline form. Formula: Mg3ClB7O13
- bornitic — of or relating to bornite
- bothrium — one of two groove-shaped suckers on the scolex of a tapeworm
- botryoid — having the form of a bunch of grapes: botryoidal hematite.
- botrytis — any of a group of fungi of the genus Botrytis, several of which cause plant diseases
- bowsprit — a spar projecting from the bow of a vessel, esp a sailing vessel, used to carry the headstay as far forward as possible
- bricktop — a person having red or reddish-brown hair.
- brighton — a coastal resort in S England, in Brighton and Hove unitary authority, East Sussex: patronized by the Prince Regent, who had the Royal Pavilion built (1782); seat of the University of Sussex (1966) and the University of Brighton (1992). Pop: 134 293 (2001)
- bring to — If you bring someone to when they are unconscious, you make them become conscious again.
- bristols — a woman's breasts
- brontide — a rumbling noise heard occasionally in some parts of the world, probably caused by seismic activity.
- bronxite — a cocktail of gin, sweet and dry vermouth, and orange juice.
- bronzite — a type of orthopyroxene often having a metallic or pearly sheen
- brookite — a reddish-brown to black mineral consisting of titanium oxide in orthorhombic crystalline form: occurs in silica veins. Formula: TiO2
- brownist — a person who supported the principles of church government advocated by Robert Browne and adopted in modified form by the Independents or Congregationalists
- c ration — a canned ration used in the field in WWII