13-letter words containing o, d, r, i
- cyberchondria — unfounded anxiety concerning the state of one's health brought on by visiting health and medical websites
- cylindraceous — having a form similar to a cylinder
- dairy factory — a factory making butter, cheese, lactose, etc from milk collected from surrounding farming areas
- dairy produce — food derived from or containing milk and its derivatives
- dark reaction — the stage of photosynthesis involving the reduction of carbon dioxide and the dissociation of water, using chemical energy stored in ATP: does not require the presence of light
- darling downs — a plateau in NE Australia, in SE Queensland: a vast agricultural and stock-raising area
- das rheingold — an opera by Wagner (1869), one of four in a cycle based on the German myth of the Ring of the Nibelung
- date of birth — Your date of birth is the exact date on which you were born, including the year.
- death tourist — a seriously ill person who seeks to terminate his or her own life by travelling to a country where medically assisted suicide is legal
- deattribution — a switch in the attribution of a work of art to another artist, usually a lesser one.
- decarbonating — Present participle of decarbonate.
- decarbonation — to remove carbon dioxide from.
- decarbonizing — Present participle of decarbonize.
- decerebration — Surgery. to remove the cerebrum.
- dechorionated — (biology) From which the chorion has been removed.
- decision tree — a treelike diagram illustrating the choices available to a decision maker, each possible decision and its estimated outcome being shown as a separate branch of the tree
- decisionmaker — One who makes decisions.
- declinometers — Plural form of declinometer.
- decompressing — Present participle of decompress.
- decompression — Decompression is the reduction of the force on something that is caused by the weight of the air.
- decorticating — Present participle of decorticate.
- decortication — the act or process of decorticating.
- decrepitation — to roast or calcine (salt, minerals, etc.) so as to cause crackling or until crackling ceases.
- deculturation — to cause the loss or abandonment of culture or cultural characteristics of (a people, society, etc.).
- deep mourning — completely black mourning clothes made of a drab material: After her brother died, she was in deep mourning for a year.
- defibrillator — A defibrillator is a machine that starts the heart beating normally again after a heart attack, by giving it an electric shock.
- defibrination — the act or process of defibrinating
- defloration's — the act of deflowering.
- deforestation — to divest or clear of forests or trees: Poor planning deforested the area in ten years.
- deformability — Deformability is the degree to which applying a force can make a particle or solid change shape.
- deformational — of or relating to deformation
- degradational — (geology) Pertaining to or formed by degradation.
- degranulation — a cellular process in which cytoplasmic granules within certain cells secrete their contents, often to the outside of the cell
- dehydrogenize — dehydrogenate.
- deintegration — an act or instance of integrating a racial, religious, or ethnic group.
- deleteriously — In a deleterious manner; harmfully.
- deliberations — formal discussion and debate, as of a committee, jury, etc
- deliriousness — The characteristic of being delirious.
- delivery note — a document that accompanies a delivery of goods
- delivery room — In a hospital, the delivery room is the room where women give birth to their babies.
- demeritorious — a mark against a person for misconduct or deficiency: If you receive four demerits during a term, you will be expelled from school.
- demi-detourne — a turn in which the dancer on pointe or demi-pointe completes a half turn toward the back foot and lowers the heels, with the back foot finishing in front.
- demochristian — a member or supporter of a Christian democratic party or movement
- democratizing — Present participle of democratize.
- demographical — of or relating to demography, the science of vital and social statistics.
- demonstrating — to make evident or establish by arguments or reasoning; prove: to demonstrate a philosophical principle.
- demonstration — A demonstration is a march or gathering which people take part in to show their opposition to something or their support for something.
- demonstrative — Someone who is demonstrative shows affection freely and openly.
- denaturations — Plural form of denaturation.
- dendrological — Of, pertaining to dendrology.