12-letter words containing o, r, g
- androgenetic — related to androgenesis
- androgenized — Simple past tense and past participle of androgenize.
- androscoggin — a river flowing from NE New Hampshire through SW Maine into the Kennebec River. 171 miles (275 km) long.
- angelo patri — Angelo [an-juh-loh] /ˈæn dʒəˌloʊ/ (Show IPA), 1877–1965, U.S. educator and writer, born in Italy.
- angiocarpous — being or having fruit contained in a vessel such as a shell
- angiographic — relating to or using angiography
- angiosarcoma — a rare, malignant tumour which grows rapidly in the blood vessels
- anglo-french — of or relating to England and France
- anglo-norman — relating to the Norman conquerors of England, their society, or their language
- anguilliform — having the shape or form of an eel
- anorexigenic — causing loss of appetite
- anotherguess — of a different type or kind; different
- anthologiser — Alternative spelling of anthologizer.
- anthologizer — an anthologist; a creator of an anthology
- anthropogeny — the genesis or development of the human race, especially as a subject of scientific study.
- anthropoglot — An animal with tongue similar to humans allowing human-like speech.
- anthropogony — the origin of the human species
- anthropology — Anthropology is the scientific study of people, society, and culture.
- anti-foreign — the policy or practice of showing hostility toward foreigners, foreign customs, etc.
- antiandrogen — (steroid, pharmacology) Any substance that inhibits the release or the biological effects of an androgen.
- antiestrogen — any of several major female sex hormones produced primarily by the ovarian follicles of female mammals, capable of inducing estrus, developing and maintaining secondary female sex characteristics, and preparing the uterus for the reception of a fertilized egg: used, especially in synthetic form, as a component of oral contraceptives, in certain cancer treatments, and in other therapies.
- antigraviton — (mostly, scifi) The hypothetical antipartner of a graviton.
- antigropelos — waterproof leggings used to protect against mud
- antihydrogen — hydrogen in which the nucleus is an antiproton with an orbiting positron
- antireligion — opposed to religion
- aortographic — relating to an aortography or aortography
- appoggiatura — an ornament consisting of a nonharmonic note (short or long) preceding a harmonic one either before or on the stress
- apportioning — Present participle of apportion.
- apron string — a string for tying an apron on
- archaeologic — Pertaining to archaeology.
- archegoniate — having archegonia
- archeologist — archaeology.
- archipelagos — Plural form of archipelago.
- area bombing — aerial bombing in which bombs are dropped over the general area of a target.
- argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
- arpeggiation — the writing, playing or singing of arpeggios
- arseno group — the bivalent group −As=As−.
- arsino group — the univalent group H 2 As−.
- arteriograms — Plural form of arteriogram.
- arthrography — the X-ray examination of a joint after injection of a contrast medium into the joint space
- assay groove — (in silverwork) a furrow left in a piece by the digging out of metal for assay.
- astigmometer — an apparatus for measuring the degree of astigmatism.
- astrobiology — the branch of biology that investigates the possibility of life elsewhere in the universe
- astrogeology — the study of the structure, composition, and history of other planets and other bodies in the solar system
- astrological — the study that assumes and attempts to interpret the influence of the heavenly bodies on human affairs.
- astroturfing — a PR tactic used in politics and advertising in which actors are paid to display overt and apparently spontaneous grassroots support for a particular product, policy, or event
- attenborough — Sir David. born 1926, British naturalist and broadcaster; noted esp for his TV series Life on Earth (1978), The Living Planet (1983), The Life of Birds (1998), The Life of Mammals (2002), and First Life (2010)
- auger shower — a shower of electrons, photons, etc. resulting from the collision of primary cosmic rays with atomic nuclei in the atmosphere
- autochangers — Plural form of autochanger.
- autographing — Present participle of autograph.