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English Words Starting With D

7,181 entries — pick a word to see its definition, pronunciation, and usage.

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Noun Verb Adjective Adverb Plural noun Suffix Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

diesel-electric
adjectivenounLow-frequency (technical/specialized)
/ˌdiːzl̩ ɪˈlɛktrɪk/A type of locomotive or vehicle where a diesel engine powers an electric generator, which in turn drives electric motors to propel the vehicle.
diesel-hydraulic
adjectivenounC1-C2
/ˌdiː.zəl haɪˈdrɒl.ɪk/A railway locomotive or power transmission system that uses a diesel engine to drive hydraulic torque converters, which then transmit power to the wheels, rather than using electrical generators and motors.
dieseling
nounlow
/ˈdiːz(ə)lɪŋ/The continued operation (or 'running on') of a spark-ignition internal combustion engine after the ignition has been turned off, caused by the heat of combustion igniting the fuel-air mixture.
dieselize
verb-intransitiveverb-transitiveRare
/ˈdiːzəlaɪz/To convert or equip a vehicle, fleet, or system to operate using diesel fuel or diesel engines.
diesinker
nounLow (Rare/Technical)
/ˈdaɪˌsɪŋkə/A craftsman who engraves metal dies, especially for coining or stamping.
diesis
nounVery Low
/ˈdʌɪɪsɪs/In music theory, a small interval, specifically the difference between two enharmonically equivalent notes (e.g., C♯ and D♭), or a term for the double dagger symbol (‡) in printing.
diester
nounC2
/ˈdaɪestə(r)/A type of synthetic lubricant or chemical compound derived from the reaction of dibasic acids with monohydric alcohols.
diestock
nounVery Low
/ˈdʌɪstɒk/A tool for holding a die (a metal-cutting tool) used to cut external screw threads.
diestrus
nounVery Low
/daɪˈiːstrəs/A period of sexual inactivity or quiescence between estrous cycles in female mammals.
diet
adjectivenounverb+2B1
/ˈdaɪ.ət/The kinds and amounts of food that a person, animal, or community habitually eats.
diet kitchen
nounC2
/ˈdaɪət ˌkɪtʃɪn/A kitchen or food service facility where meals are prepared to meet specific dietary requirements for medical or health reasons.
diet pill
nounmedium
/ˈdaɪ.ət ˌpɪl/A pill, tablet, or capsule taken to reduce body weight, typically by suppressing appetite or increasing metabolism.
diet pyramid
nounC1
/ˈdaɪ.ət ˈpɪr.ə.mɪd/A graphic representation, typically triangular, that visually organizes food groups to show recommended daily proportions for a balanced diet.
dietary
adjectivenounmoderately common
/ˈdaɪ.ə.tər.i/Relating to the food that a person or animal eats.
dietary fiber
nounMedium-High
/ˈdaɪ.ə.təri ˈfaɪ.bə/The indigestible portion of food derived from plants that aids digestion.
dietary fibre
nounMedium (Common in health, nutrition, and everyday wellness contexts)
/ˌdaɪ.ə.tər.i ˈfaɪ.bə/The indigestible parts of plant foods, such as cellulose, that aid digestion and are considered beneficial for health.
dietary law
nounC1
/ˈdaɪ.ə.tər.i ˌlɔː/A religious rule governing what foods may be eaten, how they must be prepared, and what foods are forbidden.
dietetic
adjectivenounC2
/ˌdaɪ.əˈtet.ɪk/Relating to the scientific study of nutrition, diet, and the preparation of food for health.
dietetics
nounLow
/ˌdaɪ.əˈtet.ɪks/The branch of knowledge concerned with the principles of nutrition and diet planning, especially in relation to health.
diethyl ether
nounC2
/daɪˌiːθaɪl ˈiːθə/A volatile, highly flammable organic compound with the formula (C₂H₅)₂O, historically used as a general anaesthetic and common laboratory solvent.

Showing 3241–3260 of 7181 words.