Science terminology consists of a list of physics or energy related terms.


"The branch of science concerned with the study of properties and interactions of space, time, matter and energy."
  • Celestial mass - See Celestial terminology for more information.
  • Electromagnetic radiation - A form of energy emitted and absorbed by charged particles. Different forms are determined by wavelength, including radio waves, visible light, and X-rays.
  • Energy - A quantity that denotes the ability to do work.
  • Force - A quantity denoting the ability to deform, orientate or accelerate an object in space.
  • Habitable zone - The range from a star where a liquid solvent can exist in all three phases of matter.  It is this region where complex, multicellular life forms can evolve naturally.
  • Ionising radiation - Radiation with the ability to remove electrons from atoms without requiring a temperature change. Commonly thought of as 'atomic radiation', and can cause radiation poisoning, cancer, etc.
  • Mass - The quantity of matter in a body.
  • Power - In the context of physics, the rate of change of energy over time. Measured in watts, which are equivalent to joules per second.
  • Tachyon - A type of particle that always moves faster than light.
  • Weight - The force on an object due to the gravitational attraction between it and the relevant astronomical object.


"The branch of natural science that deals with the composition and constitution of substances and the changes that they undergo as a consequence of alterations in the constitution of their molecules."
  • Atom - A building block of matter consisting of a nucleus consisting of protons and neutrons (except hydrogen-1, which has no neutrons) orbited by electrons.
  • Ion - An atom with a net charge, caused by either loss or gain of electrons.
  • Isotope - Atoms of an element which have differing numbers of neutrons. For example, deuterium is an isotope of hydrogen which has a single neutron as opposed to hydrogen-1's zero neutrons.
  • Molecule - Several atoms joined together in a specific structure.
  • pH - A measure of acidity or alkalinity (-log10[H+]). Neutral substances such as water have a pH of 7. Acids have low pHs and bases have high pHs.


"The study of life and living matter."
  • Biochemistry - The chemistry of compounds in living organisms and the processes they relate to, or the chemical characteristics of a particular organism.
  • Carnivore - An organism subsisting on meat.
  • Detrivore - An organism subsisting on non-living organic matter.
  • Evolution - The change of the genetic composition of a population over time.
  • Herbivore - An organism subsisting on plants.
  • Omnivore - An organism subsisting on both meat and plants.
  • Parasite - An organism subsisting on resources gathered or collected by or in another organism.
  • Liquivore - An organism that breaks down food into a liquid before ingestion.

Social sciencesEdit

  • Boltzmann entity - Boltzmann entities are sentient minds created from quantum fluctuations.
  • Sentience - Experiencing sensation, being aware of one's environment.
  • Sapience - The trait of possessing discernment and being able to apply relevant knowledge in an insightful manner.


  • FTL - Faster-than-light travel.
  • Megastructure - An artificial construct at least 1,000 kilometers in length.
  • Shields - a protective barrier around a spaceship
  • Sonic black hole - A phenomenon that absorbs phonons.
  • Wormhole - A corridor through space-time that allows instantaneous travel between two distant points.