15-letter words containing a, t
- diastereoisomer — a type of isomer that differs in the spatial arrangement of atoms in the molecule, but is not a mirror image; a stereoisomer that is not an enantiomer
- 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.
- dictation speed — a speed of speaking that enables someone to take down what is being said
- dictatorialness — The state or quality of being dictatorial.
- die standing up — to cease to live; undergo the complete and permanent cessation of all vital functions; become dead.
- 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
- digestive gland — any gland having ducts that pour secretions into the digestive tract, as the salivary glands, liver, and pancreas.
- digestive tract — alimentary canal
- digital carrier — (hardware, communications) A medium which can carry digital signals; broadly equivalent to the physical layer of the OSI seven layer model of networks. Carriers can be described as baseband or broadband. A baseband carrier can include direct current (DC), whereas broadband carriers are modulated by various methods into frequency bands which do not include DC. Sometimes a modem (modulator/demodulator) or codec (coder/decoder) combines several channels on one transmission path. The combining of channels is called multiplexing, and their separation is called demultiplexing, independent of whether a modem or codec bank is used. Modems can be associated with frequency division multiplexing (FDM) and codecs with time division multiplexing (TDM) though this grouping of concepts is somewhat arbitrary. If the medium of a carrier is copper telephone wire, the circuit may be called T1, T3, etc. as these designations originally described such. T1 carriers used a restored polar line coding scheme which allowed a baseband signal to be transported as broadband and restored to baseband at the receiver. T1 is not used in this sense today, and indeed it is often confused with the DS1 signal carried.
- digital citizen — a person who develops the skills and knowledge to effectively use the Internet and other digital technology, especially in order to participate responsibly in social and civic activities: We're teaching students how to become good digital citizens.
- digital mapping — a method of preparing maps in which the data is stored in a computer for ease of access and updating
- dilatory motion — a formal proposal to be discussed and voted on in a debate whose effect is to interrupt the business under discussion at the time
- dimethylaniline — a very toxic oily liquid used in industry to harden certain synthetic resins and as a solvent
- dimethylmethane — propane.
- dinoflagellates — Plural form of dinoflagellate.
- dionysius thrax — c100 b.c, Greek grammarian.
- direct dialling — a service which allows telephone users to make international calls without operator assistance
- direct taxation — Direct taxation is a system in which a government raises money by means of direct taxes.
- direction angle — an angle made by a given vector and a coordinate axis.
- disadvantageous — characterized by or involving disadvantage; unfavorable; detrimental.
- disaffectionate — not affectionate
- disambiguations — Plural form of disambiguation.
- disappointingly — failing to fulfill one's hopes or expectations: a disappointing movie; a disappointing marriage.
- disappointments — Plural form of disappointment.
- disarticulating — Present participle of disarticulate.
- disarticulation — The act of disarticulating.
- disassimilation — The decomposition of complex substances, within an organism, into simpler ones suitable only for excretion, with the release of energy; a normal nutritional process that is the reverse of assimilation.
- disassimilative — of or relating to disassimilation
- disaster relief — financial or physical help provided to people or areas hit by a disaster
- discombobulated — to confuse or disconcert; upset; frustrate: The speaker was completely discombobulated by the hecklers.
- discombobulates — Third-person singular simple present indicative form of discombobulate.
- disconfirmation — to prove to be invalid.
- discontinuation — a breach or interruption of continuity or unity: Progress was delayed by repeated discontinuations of work.
- discoordination — Impaired coordination.
- discount market — a trading market in which notes, bills, and other negotiable instruments are discounted.
- discountenanced — Simple past tense and past participle of discountenance.
- discountenances — Third-person singular simple present indicative form of discountenance.
- discretionarily — subject or left to one's own discretion.
- discriminations — Plural form of discrimination.
- disenchantingly — In a disenchanting manner.
- disentanglement — Removal of, or extrication from twists, tangles, complications or confusion.