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Reading: 100 Science Words That Start With D | Common and Rare Words
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Englishan > Vocabulary > Words List > 100 Science Words That Start With D | Common and Rare Words
Words List

100 Science Words That Start With D | Common and Rare Words

Aqsa Ali
By
Aqsa Ali
Last updated: October 11, 2025
5 Min Read
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Some science words start with D, like density, diffusion, and decomposition. They explain how matter moves, changes, or reacts in nature. Science words that start with D help describe these processes in simple ways.

In This Page
  • List of Science Words That Start With D
    • Common Science Words That Begin With D
    • Rare and Uncommon Science Words That Start With D
    • Science Words That Start With D in Physical Science
    • Science Words That Start With D in Environmental Science
    • Science Words That Begin With D in Earth Science
    • Science Words That Start With D in Biology
    • 5th and 6th Grade Science Words That Start With D
    • 7th and 8th Grade Science Words That Start With D
    • Multi-Word Phrases That Start With D in Science
    • How to Use Science Words That Start With D in Sentences
    • Pronunciation of Science Words That Start With D
  • FAQs About Science Words That Start With D

Using these science words that start with D helps learners learn new vocabulary and talk about science clearly.

List of Science Words That Start With D

  • Data
  • Dendrite
  • Density
  • Deposition
  • Desertification
  • Desalination
  • Diffusion
  • Digestion
  • Dioxin
  • Diploid
  • Displacement
  • DNA
  • Dominant
  • Doppler effect
  • Drainage
  • Drying
  • Drought
  • Dynamics
  • Dynamo
  • Dendrology
  • Decay
  • Diaphragm
  • Diatomic
  • Diameter
  • Distillation
  • Disaccharide
  • Dosage
  • Drug
  • Dust
  • Dye
  • Detoxification
  • Development
  • Dormancy
  • Diversity
  • Ductus
  • Dissolution
  • Decomposition
  • Degassing
  • Denaturation
  • Dialysis
  • Dopant
  • Double bond
  • Dehydration
  • Diffraction
  • Dispersion
  • Drag
  • Deceleration
  • Dielectric
  • Damping
  • Discharge
  • Drift
  • Detritus
  • Deposits
  • Disturbance
  • Deforestation
  • Dispersal
  • Dissipation
  • Dam
  • Diagnosis
  • Device
  • Diagram
  • Demonstration
  • Detection
  • Design
  • Discovery
  • Developmental
  • Diuretic
  • Deformation
  • Downstream
  • Digital
  • Depolarization
  • Differential
  • Dendrogram
  • Dry matter
  • Disaccharidase
  • Deflection
  • Direct current
  • Dark matter
  • Doppler shift
  • Density gradient
  • Differential pressure
  • Diffuse reflection
  • Dust storm
  • Diurnal
  • Dynamic equilibrium
  • Deepening
  • Direct transmission
  • Dose-response
  • Drift velocity
  • Disulfide
  • Decibel
  • Dissociation
  • Domain
  • Dendritic cell
  • Demography
  • Diastolic
  • Dimer
  • Dirac equation
  • Dipole
  • Drosophila
  • Damping ratio
  • Distillate
  • Double helix
  • Diffuse radiation
Science Words That Start With D covering common, rare, and positive words
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Common Science Words That Begin With D

  • Density
  • Diffusion
  • Diameter
  • DNA
  • Drought
  • Displacement
  • Dioxide
  • Dynamics
  • Decomposition
  • Doppler

Rare and Uncommon Science Words That Start With D

  • Dendrite: Branch-like extension of a neuron that receives signals
  • Denaturation: Structural change in proteins or nucleic acids
  • Diurnal: Active or occurring during the daytime
  • Divergence: Process where species evolve different traits
  • Deliquescent: Substance that absorbs moisture and dissolves
  • Dyne: Unit of force in the CGS system
  • Dialysis: Separation through a semi-permeable membrane
  • Desiccation: Drying out or removal of moisture
  • Deposition: Particles settling out of a fluid or gas
  • Decibel: Unit measuring sound intensity

Science Words That Start With D in Physical Science

  • Displacement
  • Dynamics
  • Density
  • Diffraction
  • Ductility
  • Diode
  • Drag
  • Deceleration
  • Damping
  • Dielectric

Science Words That Start With D in Environmental Science

  • Deforestation
  • Desertification
  • Drainage
  • Decomposition
  • Decontamination
  • Drought
  • Dissolution
  • Detritus
  • Discharge
  • Deposition

Science Words That Begin With D in Earth Science

  • Delta
  • Drift
  • Dormancy
  • Dike
  • Diabase
  • Deposition
  • Downburst
  • Dendrochronology
  • Divisions
  • Drainage

Science Words That Start With D in Biology

  • DNA
  • Dendrite
  • Digestive
  • Deoxyribonucleic
  • Diaphragm
  • Dominant
  • Dormant
  • Differentiation
  • Detoxification
  • Development

5th and 6th Grade Science Words That Start With D

  • Density
  • Diameter
  • DNA
  • Drought
  • Diffusion

7th and 8th Grade Science Words That Start With D

  • Dendrite
  • Decomposition
  • Diurnal
  • Denaturation
  • Divergence

Multi-Word Phrases That Start With D in Science

  • Density of water
  • Diffusion of gases
  • Diameter of circle
  • DNA sequence analysis
  • Decomposition rate
  • Diurnal temperature range
  • Dominant allele
  • Dynamic equilibrium
  • Damping coefficient
  • Deposition of sediment

How to Use Science Words That Start With D in Sentences

  • The density of the liquid is higher than water.
  • Diffusion occurs when particles spread evenly.
  • The DNA sequence determines genetic traits.
  • Decomposition of leaves enriches soil nutrients.
  • Dynamics explains motion in physics.
  • The drought affected crop production.
  • Dendrites help neurons receive signals.
  • Deposition of sand forms deltas.

Pronunciation of Science Words That Start With D

  • Density – /ˈdensɪti/
  • Diffusion – /dɪˈfjuːʒən/
  • Diameter – /daɪˈæmɪtər/
  • DNA – /diː ɛn eɪ/
  • Drought – /draʊt/
  • Decomposition – /diːˌkɒmpəˈzɪʃən/
  • Dendrite – /ˈdɛndraɪt/
  • Deposition – /ˌdɛpəˈzɪʃən/

FAQs About Science Words That Start With D

What are common science words that start with D?

Common science words that start with D include DNA, Density, Diffusion, Diameter, and Drought.

Which rare science words start with D for students?

Rare science words that start with D include Dendrite, Denaturation, Diurnal, Divergence, and Deliquescent.

How do you pronounce science words that begin with D?

Science words like Density, Diffusion, DNA, Drought, and Decomposition have standard English pronunciations.

Which physical science words start with D?

Physical science words that start with D include Dynamics, Displacement, Density, Diode, and Drag.

What are earth science words starting with D?

Earth science words that start with D include Delta, Drift, Dormancy, Dike, and Deposition.

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Aqsa Ali
ByAqsa Ali
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Aqsa Ali is a content writer at Englishan.com with a BS in English from the University of Agriculture Faisalabad (UAF). She has also completed the IELTS Academic exam with an 8 band score, reflecting strong command of academic English. Since 2022, she has written vocabulary-focused blog posts that simplify complex terms and explain word meanings step by step. Aqsa is especially known for using visuals and illustrations that make vocabulary easier to remember—her image-based lessons are regularly praised by learners for being clear, memorable, and engaging.
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