9-letter words containing o, r, k
- herd-book — a book containing the pedigrees of breeds of pigs, cattle, etc
- herdbooks — Plural form of herdbook.
- heyrovsky — Jaroslav [yah-raw-slahf] /ˈyɑ rɔ slɑf/ (Show IPA), 1890–1967, Czech chemist: Nobel Prize 1959.
- hickories — Plural form of hickory.
- hieromonk — a monk who is also a priest.
- hogchoker — a sole, Trinectes maculatus, found in coastal streams from Maine to Texas and south to Panama.
- homemaker — a person who manages the household of his or her own family, especially as a principal occupation.
- hookerish — Lb slang Resembling or befitting a prostitute.
- hookworms — Plural form of hookworm.
- horiatiki — a traditional Greek salad consisting of tomatoes, cucumber, onion, olives, and feta cheese
- hornbooks — Plural form of hornbook.
- hornwrack — a yellowish bryozoan or sea mat sometimes found on beaches after a storm
- hornywink — a lapwing
- horseback — the back of a horse.
- horselike — a large, solid-hoofed, herbivorous quadruped, Equus caballus, domesticated since prehistoric times, bred in a number of varieties, and used for carrying or pulling loads, for riding, and for racing.
- horserake — A rake drawn by a horse.
- housework — the work of cleaning, cooking, etc., to be done in housekeeping.
- hydro-ski — a hydrofoil attached to a seaplane to aid in takeoffs and landings.
- hygrodeik — A form of hygrometer having wet and dry bulb thermometers, with an adjustable index showing the percentage of moisture in the air, etc.
- interknot — to knot together
- interlock — to fit into each other, as parts of machinery, so that all action is synchronized.
- interwork — to work or weave together; interweave.
- inworking — an internal operation
- irksomely — In an irksome manner; tediously.
- iron duke — 1st Duke of (Arthur Wellesley"the Iron Duke") 1769–1852, British general and statesman, born in Ireland: prime minister 1828–30.
- iron mask — an iron covering for the face, supposedly used in the past to conceal the identity of a well-known prisoner
- iron-sick — noting a wooden hull, fastened with iron, in which chemical interaction between the iron and the wood has resulted in the decay of both; nail-sick.
- ironworks — an establishment where iron is smelted or where it is cast or wrought.
- jack rope — a rope for bending the foot of a sail to a boom.
- jack rose — a cocktail made with apple brandy, lime or lemon juice, and grenadine.
- jazz rock — a style of music that combines jazz and rock
- jazz-rock — music that combines elements of both jazz and rock and is usually performed on amplified electric instruments.
- jobseeker — A person seeking employment.
- jockstrap — an elasticized belt, a men's undergarment, with a pouch for supporting and protecting the genitals, worn especially while participating in athletics.
- jokesters — Plural form of jokester.
- jormunrek — king of the Goths, murderer of Svanhild, the daughter of Sigurd: killed by the Gjukungs; probably identical with Ermanaric (4th century a.d.), the Ostrogothic leader.
- junk room — a room in a house that is used as a store room
- junkerdom — the Junkers as a group.
- kairomone — A chemical substance emitted by an organism and detected by another of a different species that gains advantage from this, e.g., a parasite seeking a host.
- kaiserdom — The dignity, rank or office of a kaiser; the state of being a kaiser.
- kamilaroi — an Australian aboriginal language spoken in northern New South Wales.
- kangaroos — Plural form of kangaroo.
- kantharos — a deep bowl set upon a stem terminating in a foot and having two handles rising from the brim and curving downward to join the body.
- karakoram — Also called Mustagh. a mountain range in NW India, in N Kashmir. Highest peak, K2, 28,250 feet (8611 meters).
- karakorum — a ruined city in central Mongolian People's Republic: capital of the Mongol Empire in the 13th century.
- karpathos — an island off the SE coast of Greece, part of the Dodecanese Islands, in the Aegean Sea. 110 sq. mi. (280 sq. km).
- karyocyte — (cytology) Any cell that has a nucleus.
- karyogamy — the fusion of the nuclei of cells, as in fertilization.
- karyogram — (genetics) A graphical representation of a karyotype.
- karyology — the study of the structure and function of cell nuclei.