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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)

disperse dye
nounC2/Technical
/dɪˈspɜːs daɪ/A type of dye that is not water-soluble in its application form and must be finely ground and dispersed in a liquid medium to color synthetic fibres.
dispersion
nounMedium
/dɪˈspɜː.ʃən/The action or process of spreading something over a wide area, or the state of being so spread.
dispersion hardening
nounC1
/dɪˈspɜː.ʃən ˈhɑː.dən.ɪŋ/A process in materials science where the strength of a metal alloy is increased by the uniform distribution of fine, hard particles throughout the material.
dispersion relation
nounC2
/dɪˈspɜː.ʃən rɪˈleɪ.ʃən/A mathematical relationship connecting the frequency (or energy) of a wave to its wavelength (or wavenumber).
dispersive medium
nounC2
/dɪˈspɜː.sɪv ˈmiː.di.əm/A substance or material through which waves (such as light, sound, or electromagnetic waves) propagate at speeds that depend on their frequency or wavelength, causing separation of different components.
dispersive power
nounC2
/dɪˈspɜː.sɪv ˈpaʊə(r)/A measure of a transparent material's ability to separate white light into its constituent colours by refraction.
dispersoid
nounC2/Technical
/dɪˈspɜː.sɔɪd/A colloidal system in which particles of one substance are dispersed (distributed) within a continuous medium of another substance.
disphenoid
nounVery Low / Specialist
/dɪsˈfiːnɔɪd/A polyhedron with four congruent triangular faces, which is the shape of two identical triangular pyramids joined base-to-base.
dispirit
verbverb-transitiveLow (Formal/Literary)
/dɪˈspɪrɪt/To cause someone to lose enthusiasm, hope, or courage; to depress the spirits of.
displace
verbverb-transitiveC1
/dɪsˈpleɪs/To force someone or something to move from their usual place or position.
displaced
adjectivenounB2
/dɪsˈpleɪst/Forced to leave one's home, usual place, or function.
displaced homemaker
nounlow
/dɪsˈpleɪst ˈhəʊmˌmeɪkə/An individual (historically and predominantly a woman) who has been a homemaker for many years but is no longer supported by a spouse's income, often due to divorce, separation, widowhood, or a spouse's disability, and who lacks the current job skills or employment history to secure adequate employment.
displaced person
nounC1/C2
/dɪsˈpleɪst ˈpɜːs(ə)n/A person who has been forced to leave their home or native country, especially due to war, persecution, or natural disaster.
displacement
nounC1
/dɪsˈpleɪsmənt/The act of moving something from its usual or proper place, or the state of being moved from it.
displacement activity
nounC1/C2
/dɪsˈpleɪsmənt ækˈtɪvəti/An irrelevant behavior performed when an individual is confronted with conflicting or stressful situations, often as a way to avoid dealing with the primary issue.
displacement current
nounC2
/dɪsˈpleɪsmənt ˈkʌrənt/A quantity appearing in Maxwell's equations that accounts for a changing electric field acting as a current, necessary to complete Ampere's law.
displacement hull
nounC2
/dɪsˈpleɪsmənt hʌl/A boat hull designed to move through the water by pushing it aside, staying submerged and governed by the physics of buoyancy rather than planing on the surface.
displacement ton
nounVery Low / Niche Technical
/dɪsˈpleɪsmənt tʌn/A unit for measuring the weight of a ship, equal to the weight of the water displaced by the vessel's hull when floating, approximately 2,240 pounds or 1,016.05 kilograms.
displacement tonnage
nounC2
/dɪsˈpleɪsmənt ˈtʌnɪdʒ/The weight of water displaced by a ship when floating, expressed in long tons (2240 lbs). It is a direct measure of the ship's mass.
displacer
nounLow (C2)
/dɪˈspleɪ.sər/A person or thing that moves something or someone from its usual or correct position.

Showing 4261–4280 of 7181 words.