9-letter words containing o, r, a, i
- incubator — an apparatus in which eggs are hatched artificially.
- indagator — to investigate; research.
- indeavors — Plural form of indeavor.
- indeavour — Archaic form of endeavour.
- indicator — a person or thing that indicates.
- informant — a person who informs or gives information; informer.
- infractor — to break, violate, or infringe (a law, commitment, etc.).
- infusoria — Irregular plural form of infusorium.
- inhabitor — One who inhabits.
- inhalator — an apparatus designed to mix carbon dioxide and oxygen, especially for use in artificial respiration.
- inharmony — Lack of harmony.
- initiator — SCSI initiator
- innovator — to introduce something new; make changes in anything established.
- inoperant — Not operant.
- inorganic — not having the structure or organization characteristic of living bodies.
- inquorate — (of an assembly) unable to proceed effectively because not enough members are present to make up a quorum.
- inroading — Present participle of inroad.
- insulator — Electricity. a material of such low conductivity that the flow of current through it is negligible. insulating material, often glass or porcelain, in a unit form designed so as to support a charged conductor and electrically isolate it.
- interloan — a loan between one library and another
- intonator — a monochord
- intraoral — Within the mouth.
- invocator — invoke.
- irisation — the effect or quality of being iridescent; iridescence.
- iron gang — chain gang.
- iron gate — a gorge cut by the Danube through the Carpathian Mountains, between Yugoslavia and SW Romania. 2 miles (3.2 km) long.
- iron gray — a medium shade of gray, like that of freshly broken iron.
- iron hand — strict or harsh control: The general governed the country with an iron hand.
- iron mask — an iron covering for the face, supposedly used in the past to conceal the identity of a well-known prisoner
- iron-gray — a medium shade of gray, like that of freshly broken iron.
- ironclads — Plural form of ironclad.
- ironwoman — a female worker or athlete of great physical endurance who can be depended upon to perform a given task or job tirelessly.
- iroquoian — a family of North American Indian languages that includes Cherokee, Seneca, Mohawk, and Oneida.
- irrigator — One who, or that which, irrigates.
- irritator — One who or that which irritates.
- irrorated — Simple past tense and past participle of irrorate.
- irrumatio — Alternative form of irrumation.
- isallobar — a line on a weather map or chart connecting points having equal pressure changes.
- isandrous — having the stamens similar to each other and equal in number to the petals.
- isocarpic — having carpels equal in number to the other floral parts.
- isocrates — 436–338 b.c, Athenian orator.
- isocratic — a government in which all individuals have equal political power.
- isografts — Plural form of isograft.
- isolators — Plural form of isolator.
- isomerase — any of a class of enzymes that catalyze reactions involving intramolecular rearrangements.
- isopteran — a member of the order Isoptera which includes social, colonizing insects such as termites
- iteration — the act of repeating; a repetition.
- jaborandi — any of several South American shrubs belonging to the genus Pilocarpus, of the rue family.
- jargoning — the language, especially the vocabulary, peculiar to a particular trade, profession, or group: medical jargon.
- jargonise — Alternative form of jargonize.
- jargonish — jargonistic