9-letter words containing r, a, i, n
- antiparty — opposed to a political party or to political parties
- antipater — ?398–319 bc, Macedonian general under Alexander the Great: regent of Macedon (334–323)
- antipolar — of or relating to the North or South Pole.
- antipress — opposed to or acting against the press
- antiprism — A polyhedron composed of two parallel copies of some particular polygon, connected by an alternating band of triangles.
- antiquark — the antiparticle of a quark
- antiquary — An antiquary is a person who studies the past, or who collects or buys and sells old and valuable objects.
- antiquers — a person who takes a special interest in antiques; a collector of antiquities; antiquary.
- antiradar — (of a missile or other weapon) designed to destroy radar detection equipment
- antiroyal — opposed to the monarchy
- antiserum — blood serum containing antibodies against a specific antigen, used to treat or provide immunity to a disease
- antishark — designed to protect against shark attacks
- antisolar — facing in the opposite direction to the sun
- antistory — a story which does not conform to the established conventions of storytelling
- antitrade — a wind in the upper atmosphere blowing in the opposite direction from and above the trade winds
- antitragi — Plural form of antitragus.
- antitrust — In the United States, antitrust laws are intended to stop large firms taking over their competitors, fixing prices with their competitors, or interfering with free competition in any way.
- antitumor — Inhibiting the development of a tumor.
- antiulcer — acting against ulcers
- antiurban — opposed to the urban environment or urban life
- antiviral — inhibiting the growth of viruses
- antivirus — a piece of software designed to prevent viruses entering a computer system or network
- antiworld — a hypothetical or supposed world or universe composed of antimatter
- antlerite — an emerald to blackish-green mineral, hydrous copper sulfate, Cu 3 (OH) 4 SO 4 , a major copper ore in Chile.
- antshrike — any of several antbirds, especially of the genus Thamnophilus, superficially resembling the shrike.
- aperients — Plural form of aperient.
- appearing — to come into sight; become visible: A man suddenly appeared in the doorway.
- appertain — to belong (to) as a part, function, right, etc; relate (to) or be connected (with)
- appointer — to name or assign to a position, an office, or the like; designate: to appoint a new treasurer; to appoint a judge to the bench.
- appointor — a person to whom a power to nominate persons to take property is given by deed or will
- apportion — When you apportion something such as blame, you decide how much of it different people deserve or should be given.
- apprising — appraise.
- apprizing — Present participle of apprize.
- approving — An approving reaction or remark shows support for something, or satisfaction with it.
- apronlike — resembling an apron
- aprotinin — (protein) A polypeptide, obtained from bovine lung tissue, that acts as a protease inhibitor, and is used in surgery to reduce bleeding.
- aquaporin — any one of a group of proteins in cell membranes that allow the passage of water across the membrane
- arabinose — a pentose sugar in plant gums, esp of cedars and pines. It is used as a culture medium in bacteriology. Formula: C5H10O5
- arachnids — Plural form of arachnid.
- arachnoid — the middle of the three membranes that cover the brain and spinal cord
- aragonite — a generally white or grey mineral, found in sedimentary rocks and as deposits from hot springs. Composition: calcium carbonate. Formula: CaCO3. Crystal structure: orthorhombic
- araneidan — related to or belonging to the araneid
- arational — Not based on or governed by reason.
- araucania — a region of central Chile, inhabited by Araucanian Indians
- arccosine — the function the value of which for a given argument between –1 and 1 is the angle in radians (between 0 and π), the cosine of which is that argument: the inverse of the cosine function
- archfiend — a chief fiend
- archiving — Usually, archives. documents or records relating to the activities, business dealings, etc., of a person, family, corporation, association, community, or nation.
- archontic — relating to an archon
- arcminute — unit of angular measurement, 1⁄60 of a degree
- arcturian — a first-magnitude star in the constellation Boötes.