15-letter words containing a, d, f, r
- democratifiable — able to be made into a democracy
- denitrification — to remove nitrogen or nitrogen compounds from.
- desertification — Desertification is the process by which a piece of land becomes dry, empty, and unsuitable for growing trees or crops on.
- desulfurization — The process of removing sulfur from a substance, such as flue gas or crude.
- devitrification — The formation of small crystals in a glass as a result of slow cooling from the molten state.
- dexfenfluramine — an adrenergic drug, a form of fenfluramine, formerly used in treating obesity but withdrawn from the market in 1997 because of its potential to cause valvular heart disease.
- differentiating — to form or mark differently from other such things; distinguish.
- differentiation — Biology. the process by which cells or tissues change from relatively generalized to specialized kinds, during development.
- differentiative — That differentiates, or causes differentiation.
- differentiators — Plural form of differentiator.
- diffractometers — Plural form of diffractometer.
- diffractometric — Relating to diffractometry; measured using a diffractometer.
- diffrangibility — the power or capability of being diffracted
- disaster relief — financial or physical help provided to people or areas hit by a disaster
- disconfirmation — to prove to be invalid.
- disenfranchised — to disfranchise.
- disenfranchises — Third-person singular simple present indicative form of disenfranchise.
- disgracefulness — The state or quality of being disgraceful.
- dishwasherproof — (of dishes, cooking utensils, etc.) able to withstand washing in an automatic dishwasher without breaking, chipping, fading, etc.
- disinflationary — (economics) Exhibiting or causing reduced inflation.
- dissatisfactory — causing dissatisfaction; unsatisfactory: dissatisfactory service.
- disulfuric acid — pyrosulfuric acid
- diversification — the act or process of diversifying; state of being diversified.
- dna fingerprint — the use of a DNA probe for the identification of an individual, as for the matching of genes from a forensic sample with those of a criminal suspect.
- dog's breakfast — a disorderly mixture; hodgepodge.
- donnybrook fair — a fair which until 1855 was held annually at Donnybrook, County Dublin, Ireland, and which was famous for rioting and dissipation.
- draft-mule work — drudgery
- drag one's feet — to draw with force, effort, or difficulty; pull heavily or slowly along; haul; trail: They dragged the carpet out of the house.
- draughtproofing — Present participle of draughtproof.
- draw oneself up — to assume a straighter posture; stand or sit straight
- drift indicator — an instrument that indicates the amount of drift of an aircraft.
- drug trafficker — someone that trades in illegal drugs
- dryland farming — a mode of farming, practiced in regions of slight or insufficient rainfall, that relies mainly on tillage methods rendering the soil more receptive of moisture and on the selection of suitable crops.
- dwarf poinciana — royal poinciana.
- errand of mercy — a trip undertaken to help someone who is in trouble
- faculty advisor — a member of the faculty who gives advice to students
- faint-heartedly — nervously
- fair and square — free from bias, dishonesty, or injustice: a fair decision; a fair judge.
- fair-haired boy — having light-colored hair.
- fairy godfather — a kindly sponsor or guardian; godfather.
- fairy godmother — a kindly sponsor or guardian; godmother.
- false decretals — the Pseudo-Isidorian documents.
- fashion-forward — relating to, anticipating, or reflecting the most up-to-date fashion trends
- feather banding — decorative banding of veneer or inlay having the grain laid diagonally to the grain of the principal surface.
- featherstitched — Simple past tense and past participle of featherstitch.
- federal holiday — a day which is a national holiday at the behest of the Federal Government
- federal reserve — In the United States, the Federal Reserve is the central banking system, which is responsible for setting policy on monetary matters such as money supply and interest rates.
- feelgood factor — When journalists refer to the feelgood factor, they mean that people are feeling hopeful and optimistic about the future.
- fetch and carry — to go and bring back; return with; get: to go up a hill to fetch a pail of water.
- feynman diagram — a network of lines that represents a series of emissions and absorptions of elementary particles by other elementary particles, from which the probability of the series can be calculated.