1. Amphibian (amphi – both sides; bios – life): An animal able to live both on land and in water.
  2. Aquarium (aqua – water; -arium – place): A tank or place where aquatic plants and animals are kept.
  3. Autograph (auto – self; graph – write): A signature written by oneself.
  4. Bicycle (bi – two; cyclus – circle): A vehicle with two wheels.
  5. Biography (bio – life; graph – write): The written account of someone’s life.
  6. Chronology (chronos – time; -logy – study of): The study of time and the order of events.
  7. Geology (geo – earth; -logy – study of): The study of the Earth and its processes.
  8. Graphite (graph – write; -ite – mineral): A form of carbon used in pencils and as a lubricant.
  9. Hippodrome (hippos – horse; dromos – racecourse): A place for horse racing.
  10. Hydrate (hydro – water; -ate – containing): A compound containing water.
  11. Hydraulic (hydro – water; -ic – pertaining to): Pertaining to the movement of liquids in machinery.
  12. Isosceles (isos – equal; skelos – leg): A triangle with two equal sides.
  13. Kinetics (kinesis – movement; -ics – study of): The study of forces and motion.
  14. Mammal (mamma – breast): An animal with mammary glands that produce milk.
  15. Microscope (micro – small; scope – see): An instrument used to see small objects.
  16. Monologue (mono – one; logos – speech): A long speech by one person.
  17. Neon (neos – new): A colorless, inert gas used in signs and lighting.
  18. Optical (optikos – vision): Related to vision or light.
  19. Paleontology (paleo – ancient; ontology – study of): The study of ancient life through fossils.
  20. Philosophy (philos – love; sophia – wisdom): The love of wisdom and knowledge.
  21. Polygon (poly – many; gonia – angles): A shape with many angles and sides.
  22. Reactor (re – again; act – do): A device used to control nuclear reactions.
  23. Rejuvenate (re – again; juvenis – young): To make someone feel or look younger.
  24. Spectacle (specere – to look; -acle – thing): An impressive public display or performance.
  25. Symmetry (syn – together; metron – measure): Balanced proportions on both sides of a central line.
  26. Telephone (tele – far; phone – voice): A device for transmitting sound over long distances.
  27. Telescope (tele – far; scope – see): An instrument for viewing distant objects.
  28. Theater (thea – view; -ter – place): A place where plays and performances are shown.
  29. Thermometer (thermo – heat; meter – measure): An instrument for measuring temperature.
  30. Trilogy (tri – three; logos – word): A series of three related works, such as books or movies.
  31. Unicycle (uni – one; cyclus – circle): A vehicle with a single wheel.
  32. Vaccine (vacca – cow): A substance used to stimulate the production of antibodies.
  33. Vortex (vortex – whirlpool): A flow of fluid with a whirling motion.
  34. Zooplankton (zoo – animal; plankton – drifter): Tiny drifting animals in water.
  35. Autonomous (auto – self; nomos – law): Acting independently or having self-government.
  36. Bilingual (bi – two; lingual – language): Able to speak two languages.
  37. Chronometer (chronos – time; meter – measure): A device for measuring time accurately.
  38. Cosmos (kosmos – universe): The universe as an ordered whole.
  39. Dysfunctional (dys – bad; function – performance): Not operating normally.
  40. Epiphany (epi – upon; phainein – to show): A sudden realization or insight.
  41. Examine (ex – out; amine – to test): To inspect or test carefully.
  42. Hypothesis (hypo – under; thesis – placing): An educated guess or theory.
  43. Infer (in – into; ferre – to carry): To deduce information from evidence.
  44. Junction (jungere – to join): A place where things meet or join.
  45. Kinetic (kinesis – movement): Related to or resulting from motion.
  46. Mosaic (mosaicos – a work of art): A picture made up of small, colored pieces.
  47. Neural (neuron – nerve): Related to nerves or the nervous system.
  48. Orthodox (orthos – correct; doxa – opinion): Adhering to traditional beliefs or practices.
  49. Pseudonym (pseudo – false; onoma – name): A fictitious name used by an author.
  50. Quadrant (quad – four; -ant – part): A quarter of a circle or a section of a plane.
  51. Reflect (re – back; flectere – to bend): To throw back light or an image.
  52. Reform (re – again; formare – to form): To make changes to improve something.
  53. Synthesize (syn – together; thesis – placing): To combine different elements into a coherent whole.
  54. Thermal (thermos – heat): Related to heat.
  55. Trajectory (tra – across; ject – throw): The path of an object moving through space.
  56. Unveil (un – not; veil – cover): To reveal or make known.
  57. Ventilate (ventus – wind): To allow fresh air to enter and circulate.
  58. Voluntary (voluntas – will): Done by choice or free will.
  59. Zoology (zoo – animal; -logy – study of): The study of animals.
  60. Autonomy (auto – self; nomos – law): Self-governing or independent.
  61. Cardiology (cardio – heart; -logy – study of): The study of the heart and its diseases.
  62. Cognitive (cogn – to know): Related to mental processes such as awareness and thinking.
  63. Diameter (dia – through; metron – measure): A line segment passing through the center of a circle.
  64. Ecosystem (eco – environment; system – set of connected things): A biological community of interacting organisms and their environment.
  65. Hypothermia (hypo – under; therme – heat): Abnormally low body temperature.
  66. Immigrate (in – into; migrare – to move): To move into a new country for permanent residence.
  67. Immortal (in – not; mors – death): Not subject to death or decay.
  68. Isolate (iso – equal; latum – to place): To separate from others.
  69. Literature (littera – letter): Written works, especially those considered of superior or lasting artistic merit.
  70. Meteorology (meteor – lofty; -logy – study of): The study of weather and atmospheric conditions.
  71. Metamorphosis (meta – change; morph – form): A complete change in form or structure.
  72. Monarchy (mono – one; archos – ruler): A system of government led by a single ruler.
  73. Orthopedic (orthos – correct; paideia – child-rearing): Pertaining to the branch of medicine dealing with bones and muscles.
  74. Pedestrian (ped – foot; -ian – related to): Relating to walking or a person who walks.
  75. Polytheism (poly – many; theos – god): The belief in many gods.
  76. Prologue (pro – before; logos – word): An introductory section of a literary work.
  77. Reconcile (re – again; conciliare – to bring together): To restore friendly relations.
  78. Resilient (re – again; salire – to jump): Able to recover quickly from difficulties.
  79. Sanctuary (sanctus – sacred): A place of refuge or safety.
  80. Synchronous (syn – together; chronos – time): Happening at the same time.
  81. Toxicology (toxon – poison; -logy – study of): The study of poisons and their effects.
  82. Unanimous (unus – one; animus – mind): In complete agreement.
  83. Validate (validus – strong): To confirm or make valid.
  84. Vector (vector – carrier): An organism that transmits a disease or a quantity with both magnitude and direction