11-letter words containing h, a, c, i, o
- anthracotic — the deposition of coal dust in the lungs; asymptomatic pneumoconiosis.
- anthropical — relating to human nature
- anti-choice — opposed to the legal right to obtain an abortion; pro-life
- antialcohol — relating to an opposition to alcoholic drink
- anticathode — the target electrode for the stream of electrons in a vacuum tube, esp an X-ray tube
- antichoicer — someone who opposes the granting of pregnant women the choice to have an abortion
- aortic arch — one member of a series of paired curved blood vessels that arise in the embryo from the ventral aorta, pass around the pharynx through the branchial arches, and join with the dorsal aorta to form the great vessels of the head and neck.
- aphidicolin — A tetracyclic diterpene antibiotic with antiviral and antimitotical properties.
- aphlogistic — (archaic) flameless.
- aphrodisiac — An aphrodisiac is a food, drink, or drug which is said to make people want to have sex.
- apocynthion — the point at which a spacecraft in lunar orbit is farthest from the moon
- apostrophic — a digression in the form of an address to someone not present, or to a personified object or idea, as “O Death, where is thy sting?”.
- approaching — coming closer in time
- arachidonic — related to arachidonic acid or the derivatives of arachidonic acid
- arachis oil — peanut oil.
- arachnoidal — relating to the arachnoid
- archaeornis — an extinct primitive Jurassic bird, formerly placed in the genus Archaeornis but now thought to be a species of archaeopteryx
- archaeozoic — Archeozoic
- archbishops — Plural form of archbishop.
- archdiocese — An archdiocese is the area over which an archbishop has control.
- archegonial — relating to an archegonium
- archegonium — a female sex organ, occurring in mosses, spore-bearing vascular plants, and gymnosperms, that produces a single egg cell in its swollen base
- archeologic — (American spelling) alternative spelling of archaeologic.
- archicortex — (anatomy) Part of the allocortex, specifically three layered hippocampal cortexes necessary for hippocampus formation.
- archilochus — 7th century bc, Greek poet of Paros, notable for using his own experience as subject matter
- archipelago — An archipelago is a group of islands, especially small islands.
- architector — (obsolete) An architect.
- archtraitor — A chief or transcendent traitor.
- arctophilia — the practice of collecting teddy bears
- areographic — relating to areography
- atherogenic — causing atheroma
- atmospheric — Atmospheric is used to describe something which relates to the Earth's atmosphere.
- atomic heat — the product of an element's atomic weight and its specific heat (capacity)
- attophysics — the physics of structures and artefacts with dimensions in the attometre range or of devices, such as lasers, capable of producing pulses with a duration measured in attoseconds
- autographic — of, for, or like an autograph or autographs
- automorphic — shaped and designed after oneself
- autotrophic — (of organisms such as green plants) capable of manufacturing complex organic nutritive compounds from simple inorganic sources such as carbon dioxide, water, and nitrates, using energy from the sun
- auxochromic — any radical or group of atoms that intensifies the color of a substance.
- auxotrophic — designating or of a mutant organism requiring more nutritional substances than its prototrophic parent because it has lost the ability to make a certain enzyme
- bachelorism — bachelorhood
- baldacchino — baldachin
- baranovichi — a city in W central Belarus, SW of Minsk.
- barographic — Measured using a barograph.
- batholithic — Containing or relating to batholith.
- bibliotheca — a library or collection of books
- bicephalous — having two heads
- biochemical — Biochemical changes, reactions, and mechanisms relate to the chemical processes that happen in living things.
- biophysical — the branch of biology that applies the methods of physics to the study of biological structures and processes.
- bioresearch — the investigation of the nature of living organisms; biological research.
- bondi beach — a beach in Sydney, Australia, popular with surfers