15-letter words containing o, d, a, h
- developing bath — an amount of photographic developer into which photographic film or paper is inserted
- diadochokinesia — the normal ability to perform rapidly alternating muscular movements, as flexion and extension.
- diadochokinesis — the normal ability to perform rapidly alternating muscular movements, as flexion and extension.
- diaheliotropism — the tendency among plants to respond to the light of the sun by orienting their leaves perpendicular to the sun's rays, such that the upper surface of the leaves receives maximum light
- diaphototropism — growth of a plant or plant part in a direction transverse to that of the light
- diastrophically — in a diastrophic fashion
- dichloromethane — a noxious colourless liquid widely used as a solvent, e.g. in paint strippers. Formula: CH2Cl2
- dichotomisation — Alternative spelling of dichotomization.
- dichotomization — The act of dichotomizing or the thing dichotomized; classification.
- dionysius thrax — c100 b.c, Greek grammarian.
- dishabilitation — the imposition of a legal disqualification
- dishwasherproof — (of dishes, cooking utensils, etc.) able to withstand washing in an automatic dishwasher without breaking, chipping, fading, etc.
- dithiocarbamate — any salt or ester of dithiocarbamic acid, commonly used as fungicides
- dithionous acid — an unstable dibasic acid known only in solution and in the form of dithionite salts. It is a powerful reducing agent. Formula: H2S2O4
- do your head in — If something or someone does your head in, they make you angry or frustrated.
- doch-an-dorrach — a stirrup cup.
- docosahexaenoic — Of or pertaining to docosahexaenoic acid or its derivatives.
- doctoral thesis — a thesis written as part of a doctorate
- dolichocephalic — long-headed; having a cephalic index of 75 and under.
- dongola leather — a leather similar to kid, made from goatskin, sheepskin, or calfskin.
- dorsibranchiate — having branchiae or gills along the back
- doubting thomas — a person who refuses to believe without proof; skeptic. John 20:24–29.
- dougherty wagon — a horse- or mule-drawn passenger wagon having doors on the side, transverse seats, and canvas sides that can be rolled down.
- downheartedness — The characteristic of being downhearted; sadness.
- draughtproofing — Present participle of draughtproof.
- drop handlebars — aerodynamic handlebars that drop down and curve towards the rider at the ends rather than turning upwards as on conventional bicycles
- dysmorphophobia — an obsessive fear that one's body, or any part of it, is repulsive or may become so
- dystrophication — the process by which a body of water becomes dystrophic.
- echinodermatous — belonging or pertaining to the echinoderms.
- echocardiograms — Plural form of echocardiogram.
- echocardiograph — an instrument employing reflected ultrasonic waves to examine the structures and functioning of the heart.
- edmund randolph — A(sa) Philip, 1889–1979, U.S. labor leader: president of the Brotherhood of Sleeping Car Porters 1925–68.
- edriophthalmian — edriophthalmous
- edriophthalmous — (of certain crustaceans) having stalkless eyes
- eleutherodactyl — (of a bird) having the hind toe free
- endolymphangial — (anatomy) Within a lymphatic vessel.
- endomycorrhizal — Of or pertaining to endomycorrhiza.
- ergatandromorph — an ant with the characteristics of both worker and male
- eurocheque card — a card that must be shown along with Eurocheques when using them to pay for goods or services. Eurocheque cards were withdrawn in 2002
- fair-haired boy — having light-colored hair.
- fairy godfather — a kindly sponsor or guardian; godfather.
- fairy godmother — a kindly sponsor or guardian; godmother.
- fashion-forward — relating to, anticipating, or reflecting the most up-to-date fashion trends
- fast-food chain — a chain of restaurants serving fast food
- federal holiday — a day which is a national holiday at the behest of the Federal Government
- fighter command — a former unit of the Royal Air Force dedicated to the use of fighter aircraft, esp against enemy bombers and their escorts during WWII
- flannel-mouthed — speaking thickly, as if one's mouth were full of flannel
- flesh and blood — offspring or relatives: one's own flesh and blood.
- flight of ideas — a rapid flow of thought, manifested by accelerated speech with abrupt changes from topic to topic: a symptom of some mental illnesses, especially manic disorder.
- forecastle head — the extreme fore part of a forecastle superstructure.