10-letter words containing a, n, o, r
- antigorite — a variety of serpentine occurring in a brownish-green lamellar form.
- antigrowth — acting to restrict or prevent growth
- antiheroes — Plural form of antihero.
- antiheroic — relating to or in the manner of an antihero
- antimodern — opposed to modern attitudes
- antiphonar — Alternative form of antiphonary.
- antiphoner — An antiphonal.
- antiporter — a membrane protein that transports substances across cell membranes
- antiproton — the antiparticle of the proton; a particle having the same mass as the proton but an equal and opposite charge
- antireform — opposed to reform
- antismoker — a person opposed to tobacco smoking
- antiterror — Denoting political activities or measures designed to prevent or thwart terrorism.
- antitorque — Describing the rotor on the tail of a helicopter that prevents the helicopter from spinning in a direction opposite to that of the main rotor blades.
- antitumour — preventing or acting against tumours
- antrostomy — (surgery) Incision and drainage of the antrum.
- any longer — anymore
- aphorizing — Present participle of aphorize.
- apocryphon — something that is regarded as probably untrue
- apoprotein — any conjugated protein from which the prosthetic group has been removed, such as apohaemoglobin (the protein of haemoglobin without its haem group)
- apparation — (obsolete) A preparation.
- apparition — An apparition is someone you see or think you see but who is not really there as a physical being.
- appointers — Plural form of appointer.
- appointors — Plural form of appointor.
- apportions — Third-person singular simple present indicative form of apportion.
- approvance — approval
- aprication — the act of sunbathing or basking in the sun
- aquaporins — Plural form of aquaporin.
- arachnoids — Plural form of arachnoid.
- aragonitic — relating to aragonite
- arc cosine — Trigonometry. the angle, measured in radians, that has a cosine equal to a given number. Symbol: cos −1. Abbreviation: arc cos;
- arc second — Astronomy. second2 (def 4).
- archdeacon — An archdeacon is a high-ranking clergyman who works as an assistant to a bishop, especially in the Anglican church.
- archegonia — the female reproductive organ in ferns, mosses, etc.
- archipenko — Aleksandr Porfiryevich (alɪkˈsandr parˈfirjɪvitʃ). 1887– 1964, Russian sculptor and painter, in the US after 1923, whose work is characterized by economy of form
- archontate — an archon's period in office
- arctogaean — of or relating to Arctogaea
- arefaction — the act of drying, or a dried condition
- arenaceous — (of sedimentary rocks and deposits) composed of sand or sandstone
- argenteous — silvery.
- armageddon — Armageddon is a terrible battle or war that some people think will lead to the total destruction of the world or the human race.
- armipotent — strong in arms or war
- arpeggione — a stringed musical instrument of the early 19th century which was played with a bow
- arrenotoky — parthenogenesis in which only males are produced.
- arrogantly — making claims or pretensions to superior importance or rights; overbearingly assuming; insolently proud: an arrogant public official.
- arrogating — Present participle of arrogate.
- arrogation — to claim unwarrantably or presumptuously; assume or appropriate to oneself without right: to arrogate the right to make decisions.
- arsenolite — a mineral, arsenic trioxide, As 2 O 3 , occurring usually as a white incrustation on arsenical ores.
- arvicoline — inhabiting meadows or rural areas
- arytenoids — Plural form of arytenoid.
- asbjornsen — Peter Christen [pey-tuh r kris-tuh n] /ˈpeɪ tər ˈkrɪs tən/ (Show IPA), 1812–85, Norwegian naturalist and folklorist.