Science Words That Start With N: A Handy List

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

1. Neutron- A subatomic particle with no electric charge.
2. Nucleus- The central part of an atom, containing protons and neutrons.
3. Neuron- A nerve cell that transmits electrical impulses.
4. Nitrogen- A chemical element with symbol N, a colorless gas making up 78% of Earth’s atmosphere.
5. Nucleic Acid- Biomolecules essential for life, including DNA and RNA.
6. Nuclear Fusion- The process where atomic nuclei combine to form heavier nuclei, releasing energy.
7. Nanometer- A unit of length equal to one billionth of a meter.
8. Neurotransmitter- Chemicals that transmit signals across synapses between neurons.
9. Nebula- A cloud of gas and dust in space, often a star-forming region.
10. Nucleotide- The basic building block of nucleic acids (DNA and RNA).
11. Neutrino- A very light, neutral subatomic particle.
12. Newton- A unit of force in the International System of Units.
13. Nephron- The functional unit of the kidney.
14. Neurology- The branch of medicine dealing with the nervous system.
15. Nephrology- The branch of medicine dealing with the kidneys.
16. Nematode- A type of roundworm.
17. Neuroplasticity- The ability of the brain to change and adapt.
18. Neurogenesis- The process of generating new neurons.
19. Nocturnal- Active during the night.
20. Neutron Star- A dense stellar remnant of a supernova.
21. Nuclear Reaction- A process involving changes in the nucleus of an atom.
22. Necrosis- The death of body tissue.
23. Nitrification- The process of converting ammonia into nitrates by bacteria.
24. Nicotine- A stimulant found in tobacco.
25. Nematology- The study of nematodes.
26. Neogene- A geological period within the Cenozoic Era.
27. Neuroendocrinology- The study of interactions between the nervous and endocrine systems.
28. Nondisjunction- The failure of chromosome pairs to separate properly.
29. Neurotoxin- A poison that acts on the nervous system.
30. Neo- Darwinism – A modern synthesis of Darwinian evolution with Mendelian genetics.
31. Nonmetal- Elements that are not metals and typically have insulating properties.
32. Nebulizer- A device for administering medication in the form of a mist inhaled into the lungs.
33. NMR (Nuclear Magnetic Resonance)- A technique for determining the structure of molecules.
34. Niche- The role of an organism within its environment.
35. Node- A point in a network or graph.
36. Nondestructive Testing- Techniques to evaluate materials or structures without causing damage.
37. Naphthalene- An organic compound used in mothballs.
38. Neuroethology- The study of the neural basis of natural animal behavior.
39. Nitric Acid- A highly corrosive mineral acid.
40. Nucleotide Excision Repair- A DNA repair mechanism.
41. Noradrenaline- A neurotransmitter and hormone involved in the ‘fight or flight’ response.
42. Nucleosome- A structural unit of a eukaryotic chromosome.
43. Nanotechnology- Science, engineering, and application of materials at the nanoscale.
44. Nutation- A motion of the axis of a rotating object.
45. Neuroglia- Supportive cells in the nervous system.
46. Neuromuscular- Relating to nerves and muscles.
47. Nutrient- A substance that provides nourishment essential for growth.
48. Neomorph- A mutation that results in a new function for a gene.
49. Narcotic- A drug or substance affecting the central nervous system to relieve pain and induce sleep.
50. Neurofibromatosis- A genetic disorder causing tumors to form on nerve tissue.
51. Nodal- Pertaining to a node.
52. Naphtha- A flammable liquid mixture of hydrocarbons.
53. Neutron Capture- A nuclear reaction in which an atomic nucleus absorbs a neutron.
54. Nanoparticle- A microscopic particle with at least one dimension less than 100 nm.
55. Nitrosamine- A type of compound with potential carcinogenic properties.
56. Nyctalopia- Night blindness.
57. Necrobiotic- Relating to the gradual degeneration of cells.
58. Nematocyst- A specialized cell in certain animals that contains a barbed or venomous coiled thread.
59. Neurospora- A genus of fungi used in genetic research.
60. Nephelometer- An instrument for measuring the concentration of suspended particles in a liquid.
61. Necker Cube- An optical illusion involving a two-dimensional cube.
62. Neuropharmacology- The study of how drugs affect the nervous system.
63. Normoxia- Normal levels of oxygen.
64. Neural Crest- A group of cells in vertebrate embryos that influence the development of various tissues.
65. Neutron Diffraction- A technique for determining the atomic and magnetic structure of a material.
66. Nitrosyl- The radical NO (Nitric oxide).
67. Nutraceutical- A food containing health-giving additives.
68. NMR Spectroscopy- An analytical chemistry technique used to study the properties of molecules.
69. Norovirus- A highly contagious virus causing gastroenteritis.
70. Nuclear Medicine- A medical specialty involving the application of radioactive substances.
71. Nucleoplasm- The substance of a cell nucleus.
72. NIR (Near- Infrared) – A region of the infrared spectrum.
73. Neurobiology- The study of the biology of the nervous system.
74. Neuroimaging- The process of producing images of the structure and function of the brain.
75. Nuclide- A species of atom characterized by its atomic number, neutron number, and energy state.
76. Nanochemistry- The application of chemistry to nanoscale materials.
77. Neutron Activation Analysis- A technique for determining the concentrations of elements.
78. Newtonian Mechanics- The classical mechanics based on Newton’s laws of motion.
79. Nuclear Pore- A large complex of proteins that allows the transport of molecules across the nuclear envelope.
80. Nitrogen Cycle- The process by which nitrogen is converted between its various chemical forms.
81. Nondeterministic- Referring to systems where events do not necessarily follow predictable patterns.
82. Nocebo- A detrimental effect on health produced by psychological or psychosomatic factors.
83. Nucleophile- A chemical species that donates an electron pair to form a chemical bond.
84. Neural Network- A computational approach mimicking the neural connections in a brain.
85. Neutron Radiography- A technique using neutrons to image the internal structure of materials.
86. Nematocyte- A cell containing a nematocyst, involved in prey capture and defense in certain animals.
87. Normobaric- Referring to normal atmospheric pressure.
88. Neurohypophysis- The posterior lobe of the pituitary gland.
89. NADH (Nicotinamide Adenine Dinucleotide)- A coenzyme involved in redox reactions.
90. Nomogram- A graphical calculating device.