- depot
- depth varied
- derivation
- derrick
- derrick foundation
- derrick post
- desanding equipment
- description
- descriptor group
- desicator
- design assembly
- design car
- design characteristics
- design contract
- design formula
- design inspection
- design length
- design policy
- design span
- design strength
- design variable
- designate
- desire line
- desktop
- despise
- destination directory
- destroy
- detachable joint
- detached building
- detain
- detector
- determinant calculus
- determinism
- detritus
- detritus soil
- detrusion
- devaluate
- develop
- developed gothic
- development machine
- development tool
- deviation ratio
- device
- devitrification
- dewatering coefficient
- diagonal bar
- diagonal brace
- diagonal crack
- diagonal fault
- diagonal stripe
- dial
- demolish
- demolition contractor
- demolition zone
- demoulding
- demountable bridge
- dense
- dense aggregate
- dense medium
- dense sand
- dense wood
- density
- density curve
- Density gradient
- dent
- dental
- dentils
- denudation
- denudation base
- denuded
- department
- dependent failure
- Dependent variable
- depolymerization
- deposit opening
- deposit stripping
- deposited moraine
- deposition
- depression curve
- depth
- depth factor
- derivation conduit
- derrick crane
- derrick leg
- desanding
- descending tide
- design criteria
- design deflection
- design diagram
- design engineer
- design experiment
- design module
- design resistance
- design speed
- design work
- designed elevation
- designed level
- desilting basin
- detached chimney
- detached house