Action Potential

Science / Biology / Action Potential: A reversal of the electrical potential in the plasma membrane of a neuron that occurs when a nerve cell is stimulated; caused by rapid changes in membrane permeability to sodium and potassium.

Other Words for Action

Action Noun Synonyms: activity, performance, movement, motion, energy, liveliness, vim, vigor, spirit, vitality, enterprise, initiative

Other Words for Potential

Potential Adjective Synonyms: possible, likely, implicit, implied, imminent, developing, budding, embryonic, dormant, hidden, concealed, covert, latent, quiescent, passive, future, unrealized, undeveloped

Potentially Responsible Party (PRP)

Health / Disease / Potentially Responsible Party (PRP): A company, government, or person legally responsible for cleaning up the pollution at a hazardous waste site under Superfund. There may be more than one PRP for a particular site. MORE


Technology / Home Audio / Rarefaction: In sound waves, the opposite of compression. An area of decreased air pressure caused by a sound wave. In a graphical depiction of a cyclical waveform rarefaction occurs when the wave is in the bottom MORE


Business / Finance / Reaction: A decline in prices following an advance. Opposite of rally. MORE

Reaction Formation

Science / Psychiatry / Reaction Formation: A defense mechanism, operating unconsciously, in which a person adopts affects, ideas, and behaviours that are the opposites of impulses harboured either consciously or unconsciously. For example, exc MORE

Potential Energy

Science / Chemistry / Potential Energy: Energy an object possesses by virtue of its position. For example, lifting a mass mby h meters increases its potential energy by mgh, where g is the acceleration due to gravity. MORE

Potential Difference

Science / Chemistry / Potential Difference: Work that must be done to move an electric charge between specified points. Electric potential differences are measured in volts. MORE