12-letter words containing h, a, n, o
- coronagraphs — Plural form of coronagraph.
- coronal hole — a part of the solar corona that appears dark on optical and x-ray images and is characterized by low temperature and low density.
- counter hand — a person who works behind a counter; assistant
- countercharm — an object or action that is capable of destroying a magical charm
- counterearth — (in Pythagorean astronomy) a planet, out of sight from our part of the earth, whose shadow upon the sun and moon, cast by a central fire that is also out of sight, causes the eclipses.
- countermarch — to march or cause to march back along the same route
- countershaft — an intermediate shaft that is driven by, but rotates in the opposite direction to, a main shaft, esp in a gear train
- craniography — examination of the skull as depicted by craniographs, photographs, and charts.
- crowned head — a monarch
- curtain hook — a hook used to attach a curtain to a curtain rail
- cyanohydrins — Plural form of cyanohydrin.
- cycloheptane — (organic compound) An alicyclic hydrocarbon, C7H14; a volatile inflammable liquid.
- cyclohexanol — (organic compound) The alicyclic alcohol derived from cyclohexane by replacement of a hydrogen atom with a hydroxyl group.
- cytochalasin — any of a group of metabolites derived from fungus that interfere with cell processes
- daphnephoria — an ancient Greek festival in honor of Apollo.
- death notice — a public announcement, e.g. in a newspaper, that someone has died
- dechlorinate — to remove chlorine from (a substance)
- demonography — a treatise on demons.
- detectaphone — a device for listening secretly to others' telephone conversations
- diamond head — promontory in SE Oahu, Hawaii, near Honolulu, consisting of the rim of an extinct volcanic crater
- diaphanously — In a diaphanous manner or to a diaphanous extent.
- diazomethane — a yellow odourless explosive gas, used as a methylating agent. Formula: CH2:N:N
- diencephalon — the posterior section of the forebrain.
- disharmonize — (intransitive) To cause disorder.
- dishonorable — showing lack of honor or integrity; ignoble; base; disgraceful; shameful: Cheating is dishonorable.
- dishonorably — In a dishonorable manner.
- dodecahedron — a solid figure having 12 faces.
- dodecaphonic — musical composition using the 12-tone technique.
- dog's chance — little likelihood; small chance (usually used in the negative): That project didn't have a dog's chance of succeeding.
- dolphinarium — An aquarium in which dolphins are kept and trained for public entertainment.
- donald knuth — (person) Donald E. Knuth, the author of the TeX document formatting system, Metafont its font-design program and the 3 volume computer science "Bible" of algorithms, "The Art of Computer Programming". Knuth suggested the name "Backus-Naur Form" and was also involved in the SOL simulation language, and developed the WEB literate programming system. See also MIX, Turingol.
- doomwatching — the act of watching the environment to warn of and prevent harm
- down-at-heel — of a shabby, run-down appearance; seedy: He is rapidly becoming a down-at-heel drifter and a drunk.
- down-hearted — dejected; depressed; discouraged.
- dragon light — a herbal remedy for impotence
- dreadnoughts — Plural form of dreadnought.
- drift anchor — a sea anchor or drag.
- dysmenorrhea — painful menstruation.
- earth almond — chufa.
- earth tongue — any of a group of fungi of the phylum Ascomycota, characterized by a tongue-shaped fruiting body, found on decaying logs and damp soil.
- earth-moving — Earth-moving equipment is machinery that is used for digging and moving large amounts of soil.
- east lothian — a historic county in SE Scotland.
- eating house — a restaurant or other place where one can eat
- echinodermal — (zoology) Relating or belonging to the echinoderms.
- echolocation — the general method of locating objects by determining the time for an echo to return and the direction from which it returns, as by radar or sonar.
- elasmobranch — A cartilaginous fish of a group that comprises the sharks, rays, and skates.
- enantiomorph — Each of two crystalline or other geometric forms that are mirror images of each other.
- enantiopathy — the treatment of disease by opposites; allopathy
- enarthrodial — Relating to an enarthrosis.
- encompasseth — Archaic third-person singular form of encompass.