- Coniferyl alcohol
- Conjoint
- Conjoint analysis
- Conjugacy classes
- Conjugate
- Conjugate base
- Conjugate gradient method
- Conjugate priors
- Conjugate transpose
- Conjugate vaccine
- Conjugate variables
- Conjugated
- Conjugated fatty acids
- Conjugated linoleic acid
- Conjugated proteins
- Conjugated system
- Conjugation
- Conjunction fallacy
- Conjunctiva
- Conjunctive query
- Conjunctivitis
- Connected cars
- Connected components
- Connected dominating set
- Connected health
- Connected space
- Connected sum
- Connected-component labeling
- Connecting rod
- Connection form
- Connection-oriented
- Connectionism
- Connectionist expert system
- Connectionless
- Connective tissue
- Connectivism
- Connectivity
- Connectomes
- Connexins
- Connexons
- Connotation
- Conradson carbon residue
- Cons
- Conscious sedation
- Consensus
- Consensus clustering
- Consensus forecasts
- Consensus sequences
- ConsensusPathDB
- Consequent
- Conservation areas
- Conservation laws
- Conservation of energy
- Conservation of mass
- Conservatism
- Conservative force
- Conservative system
- Conserved current
- Conserved quantities
- Conserved quantity
- Conserved sequence
- Consignee
- Consignor
- Consistent estimator
- Consistent hashing
- Consolidated
- Consolidation
- Const
- Constant air volume
- Constant angular velocity
- Constant bitrate
- Constant current
- Constant elasticity of substitution
- Constant mean curvature
- Constant of integration
- Constant phase element
- Constant speed drive
- Constant term
- Constantan
- Constants of motion
- Constellation diagram
- Constellation shaping
- Constipation
- Constitutive equations
- Constrained Application Protocol
- Constrained Delaunay triangulation
- Constrained least squares
- Constrained optimization
- Constrained-layer damping
- Constraint graph
- Constraint logic programming
- Constraint programming
- Constraint satisfaction
- Constrictive pericarditis
- Constructability
- Constructed wetlands
- Constructible
- Construction 2025
- Construction 3D printing
- Construction aggregate
- Construction communication
- Construction contract
- Construction delay
- Construction engineering
- Construction management
- Construction partnering
- Construction permit
- Construction robots
- Construction trailers
- Construction waste
- Constructive heuristic
- Constructive proof
- Constructivism
- Constructivist epistemology
- Constructors
- Consultation
- Consumables
- Consumer behaviour
- Consumer goods
- Consumer health informatics
- Consumer privacy
- Consumer unit
- Consumer-to-consumer
- Consumerization
- Contact angle
- Contact area
- Contact dermatitis
- Contact dynamics
- Contact force
- Contact geometry
- Contact graph
- Contact inhibition
- Contact lenses
- Contact mechanics
- Contact microphone
- Contact pads
- Contact patch
- Contact process
- Contact resistance
- Contact tracing
- Contactless payment
- Contactors
- Contagious
- Contagious disease
- Container crane
- Container glass
- Container port
- Container ships
- Container terminal
- Containerization