Science Words That Start with C: Essential Terms and Definitions

In this article, you’ll find a comprehensive list of science-related words that start with the letter C.

  1. Cell- Basic unit of life.
  2. Carbon- Chemical element essential for life.
  3. Centrifuge- Device to separate substances.
  4. Chromosome- Structure carrying genetic information.
  5. Catalyst- Substance speeding up a reaction.
  6. Convection- Heat transfer by fluid movement.
  7. Cytoplasm- Jelly-like material in cells.
  8. Chlorophyll- Green pigment in plants.
  9. Compound- Substance formed from elements.
  10. Circulation- Movement of blood in the body.
  11. Crystallography- Study of crystal structures.
  12. Conduction- Heat transfer through a material.
  13. Covalent- Type of chemical bond.
  14. Condensation- Gas to liquid state change.
  15. Calorimeter- Device measuring heat in reactions.
  16. Chloroplast- Organelle in plant cells.
  17. Centripetal- Force directed towards center.
  18. Chromatography- Technique to separate mixtures.
  19. Cytokinesis- Division of a cell’s cytoplasm.
  20. Collision- Interaction between particles.
  21. Carcinogen- Cancer-causing substance.
  22. Cerebellum- Brain region for coordination.
  23. Cortex- Outer layer of an organ.
  24. Catalyst- Substance increasing reaction rate.
  25. Coenzyme- Molecule aiding enzymes.
  26. Cistron- Unit of genetic function.
  27. Cyclotron- Particle accelerator.
  28. Cytosine- DNA and RNA base.
  29. Cryogenics- Study of low temperatures.
  30. Clone- Genetically identical organism.
  31. Conglomerate- Coarse-grained sedimentary rock.
  32. Comet- Icy celestial body in space.
  33. Cretaceous- Dinosaur extinction period.
  34. Commensalism- Relationship beneficial to one species.
  35. Chemotaxis- Movement towards chemicals.
  36. Catalyst- Substance that speeds reactions.
  37. Capillary- Smallest blood vessel.
  38. Compression- Reduction in volume.
  39. Carrier- Molecule transporting substances.
  40. Chitin- Polysaccharide in arthropod exoskeletons.
  41. Concentration- Amount of substance in a given volume.
  42. Cladistics- Method of classifying species.
  43. Cambium- Plant tissue for growth.
  44. Condensation- Water vapor to liquid.
  45. Copolymer- Polymer from two different monomers.
  46. Cation- Positively charged ion.
  47. Circadian- Relating to biological cycles.
  48. Cytoskeleton- Network in cell cytoplasm.
  49. Cuticle- Protective layer on plants.
  50. Caesium- Silver-colored chemical element.
  51. Cytokine- Small protein for cell signaling.
  52. Carbonate- Salt containing CO3.
  53. Cholesterol- Substance in cell membranes.
  54. Culmination- Peak or climax of phenomena.
  55. Colloid- Mixture with dispersed particles.
  56. Cobalt- Magnetic chemical element.
  57. Cyclone- Large air mass rotating.
  58. Cloning- Creating an identical copy.
  59. Calcium- Chemical element, essential nutrient.
  60. Chloride- Compound of chlorine.
  61. Carbohydrate- Organic compound with sugars.
  62. Cellulose- Structural part of plant cell walls.
  63. Convectional- Associated with convection heat transfer.
  64. Cytokinesis- Process of cell division.
  65. Crepuscular- Active during twilight.
  66. Cytokine- Immune system signaling molecule.
  67. Collagen- Protein in connective tissues.
  68. Consilience- Linking different academic disciplines.
  69. Cytotoxic- Toxic to cells.
  70. Compound- Substance from two or more elements.
  71. Codon- DNA or RNA sequence component.
  72. Cline- Gradual change in trait across population.
  73. Cryosphere- Frozen parts of Earth.
  74. Clast- Fragment of geological detritus.
  75. Carotenoid- Pigment in photosynthetic organisms.
  76. Cyanobacteria- Photosynthetic bacteria.
  77. Core- Central part, commonly of Earth.
  78. Cardiology- Study of the heart.
  79. Curie- Radioactivity unit.
  80. Cyclogenesis- Development of cyclones.
  81. Coroner- Official investigating deaths.
  82. Cytolysis- Cell bursting.
  83. Cryogen- Fluid producing low temperatures.
  84. Chemisorption- Chemical adsorption process.
  85. Conifer- Cone-bearing tree.
  86. Coefficient- Numerical or constant quantity.
  87. Conjugation- Joining in biology, chemistry.
  88. Caballing- Mixing leading to denser water.
  89. Cyanide- Poisonous compound with carbon-nitrogen bonds.
  90. Cerebrum- Largest brain part, higher functions.
  91. Chirality- Property of non-superimposable mirror images.
  92. Crosslink- Bond linking polymer chain atoms.
  93. Conductor- Material conducting electricity.
  94. Corrosion- Gradual destruction of materials.

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