9-letter words containing r, i, o, t
- biorhythm — a cyclically recurring pattern of physiological states in an organism or organ, such as alpha rhythm or circadian rhythm; believed by some to affect physical and mental states and behaviour
- biostrome — a rock layer consisting of a deposit of organic material, such as fossils
- bioturbed — stirred by organisms
- bird shot — small-sized shot used for shooting birds.
- birthroot — any of several North American plants of the genus Trillium, esp T. erectum, whose tuber-like roots were formerly used by the Native Americans as an aid in childbirth: family Trilliaceae
- birthwort — any of several climbing plants of the genus Aristolochia, esp A. clematitis of Europe, once believed to ease childbirth: family Aristolochiaceae
- boat ride — a ride in a boat
- boat trip — a trip in a boat
- bonetired — completely exhausted
- boresight — to verify the alignment of the sights and bore of (a firearm).
- botanizer — a person who botanizes
- bothering — to give trouble to; annoy; pester; worry: His baby sister bothered him for candy.
- bowstring — the string of an archer's bow, usually consisting of three strands of hemp
- briarroot — the hard woody root of the briar, used for making tobacco pipes
- bridgeton — a city in SW New Jersey.
- brierroot — brier2 (sense 2)
- brimstone — Brimstone is the same as sulphur.
- brimstony — of, relating to or resembling brimstone; sulphurous
- bring out — When a person or company brings out a new product, especially a new book or CD, they produce it and put it on sale.
- briolette — a pear-shaped gem cut with long triangular facets
- brittonic — Brythonic
- broadtail — the highly valued black wavy fur obtained from the skins of newly born karakul lambs; caracul
- bromantic — noting or pertaining to a bromance: You might call this movie a bromantic comedy.
- bromatium — any of the swollen hyphal tips of certain fungi, on which ants can feed.
- brominate — to treat or react with bromine
- bronxites — the, a borough of New York City, N of Manhattan. 43.4 sq. mi. (112 sq. km).
- brythonic — the S group of Celtic languages, consisting of Welsh, Cornish, and Breton
- c rations — tinned food formerly issued in packs to US soldiers
- cabriolet — A cabriolet is a type of car with two doors and a convertible top.
- cactiform — resembling a cactus
- caliatour — a tropical dyewood, possibly red sandalwood
- cantorial — of or relating to a precentor
- capacitor — A capacitor is a device for accumulating electric charge.
- captopril — an ACE inhibitor used to treat high blood pressure and congestive heart failure
- carbonite — An explosive manufactured from a variety of materials, including nitroglycerine, wood meal and nitrates.
- cariosity — (medicine) caries.
- carnation — A carnation is a plant with white, pink, or red flowers.
- carnosity — an abnormal fleshy protrusion growing on any part of the body
- carnotite — a radioactive yellow mineral consisting of hydrated uranium potassium vanadate: occurs in sedimentary rocks and is a source of uranium, radium, and vanadium. Formula: K2(UO2)2(VO4)2.3H2O
- cast iron — Cast iron is iron which contains a small amount of carbon. It is hard and cannot be bent so it has to be made into objects by casting.
- cast-iron — made of cast iron.
- castroism — the philosophy and policies of Fidel Castro and his followers
- castroist — of or relating to the philosophy and policies of Fidel Castro and his followers
- categoric — Categoric means the same as categorical.
- catoptric — the branch of optics dealing with the formation of images by mirrors.
- cautioner — A person who cautions.
- cautionry — the position or function of a surety, a person who protects and takes responsibility for another person
- cavorting — to prance or caper about.
- centriole — either of two rodlike bodies in most animal cells that form the poles of the spindle during mitosis
- centroids — Plural form of centroid.