active

ac*tive

adjective

{bc}characterized by {a_link|action} rather than by contemplation or speculation

active

noun

{bc}an {d_link|active|active:1} person {bc}one engaged in an action or activity

active immunity

noun

{bc}usually long-lasting immunity that is acquired through production of antibodies within the organism in response to the presence of antigens {dx}compare {dxt|passive immunity||}{/dx}

ac*tive-ma*trix

adjective

{bc}of, relating to, or being an LCD in which each pixel is individually controlled

active shooter

noun

{bc}a person who is illegally using a firearm to kill or try to kill people especially in a public place {bc}a person who is shooting at people

active site

noun

{bc}a region on the surface of an enzyme whose shape permits binding only of a specific molecular substrate that then undergoes catalysis

active suspension

noun

{bc}a computerized system in automobiles that actively adjusts the suspension in response to driving conditions

active transport

noun

{bc}the movement of a chemical substance by the expenditure of energy against a gradient in concentration or in electrical potential across a plasma membrane {dx}compare {dxt|passive transport||}{/dx}

active duty

noun

{bc}employment as a full-time member of the military

active service

noun

{bc}participation in a battle or battles