11-letter words containing a, p, r, o
- amniography — an x-ray examination of the amniotic sac after the injection of an opaque solution, performed to permit visualization of the umbilical cord and the placenta.
- amorphously — lacking definite form; having no specific shape; formless: the amorphous clouds.
- ampere-hour — a practical unit of quantity of electricity; the quantity that flows in one hour through a conductor carrying a current of 1 ampere. 1 ampere-hour is equivalent to 3600 coulombs
- amphichroic — producing two colours, one on reacting with an acid, the other on reacting with a base
- amphidromia — a family festival in ancient Athens in honor of the birth of a child, during which the child received its name.
- amphigories — Plural form of amphigory.
- amphikaryon — a diploid nucleus.
- amphithuron — amphithyra (def 1).
- amphithyron — amphithyra (def 1).
- amphoriskos — a miniature amphora.
- amyotrophic — (medicine) Characterized by atrophy of the muscles.
- anamorphism — intense metamorphism of a rock in which high-density complex minerals are formed from simpler minerals of lower density
- anamorphous — lacking a clear or definite form
- anaphoresis — the movement of suspended charged particles towards the anode in an electric field
- anaphorical — of or relating to an anaphora
- anaplerosis — the filling up of a scar, wound, etc which has decayed or been destroyed
- anaplerotic — of or relating to anaplerosis
- anastrophes — Plural form of anastrophe.
- anchor span — (on a suspension or cantilever bridge) a span from an anchorage to the nearest pier or tower.
- androphilic — Sexually attracted to men.
- androphobia — an abnormal fear of men; an aversion toward the male sex.
- androphobic — Exhibiting androphobia; fearful of men.
- androsphinx — a sphinx having the head of a man
- anemographs — Plural form of anemograph.
- anemography — the technique of recording wind measurements
- angiography — a method of obtaining an X-ray of blood vessels by injecting into them a substance, such as one containing iodine, that shows up as opaque on an X-ray picture
- anglosphere — a group of English-speaking countries that share common roots in British culture and history, usually the UK, the US, Australia, New Zealand, and Canada
- anisocarpic — (of a flower) having a lower number of carpels than of other floral parts.
- anisopteran — belonging or pertaining to the suborder Anisoptera, comprising the dragonflies.
- anisotropic — not isotropic; having different physical properties in different directions
- answerphone — An answerphone is a device which you connect to your telephone and which records telephone calls while you are out.
- antatrophic — preventing or curing atrophy.
- anteportico — a lesser portico preceding a main portico.
- anthrophony — Any sound produced by human beings or their creations.
- anthropical — relating to human nature
- anthropoids — Plural form of anthropoid.
- anthroponym — a personal name.
- anticipator — to realize beforehand; foretaste or foresee: to anticipate pleasure.
- antihyperon — the antiparticle of the hyperon
- antileprosy — acting against leprosy
- antiphonary — a bound collection of antiphons, esp for use in the divine office
- antipopular — opposed to the people or to popular cause
- antipoverty — acting against poverty
- antiprotons — Plural form of antiproton.
- antipyrotic — relieving the pain and stimulating the healing of burns.
- antistrophe — the second of two movements made by a chorus during the performance of a choral ode
- aortography — an X-ray examination of the aorta
- apatosaurus — brontosaurus
- apertometer — an instrument for measuring the angular and numerical aperture of the objective lens of a microscope.
- apgar score — system for determining the condition of an infant at birth