| active air defense | air defense by the use aircraft or missiles or artillery or electronic countermeasures |
| demand feeding | feeding a baby or animal whenever it shows a need |
| demand | the act of demanding, the kidnapper's exorbitant demands for money |
| active matrix screen | a type of LCD screen used for some portable computers, there is a separate circuit for each pixel |
| active placebo | a placebo used in experimental tests of a drug that has noticeable side effects, an active placebo mimics the side effects of the experimental drug |
drug cocktail
highly active antiretroviral therapy
HAART | a combination of protease inhibitors taken with reverse transcriptase inhibitors, used in treating AIDS and HIV |
| requirement demand | required activity, the requirements of his work affected his health, there were many demands on his time |
| active application | an application that is currently running and in the foreground |
| demand | an urgent or peremptory request, his demands for attention were unceasing |
calling into question
demand for explanation | a challenge to defend what someone has said |
| demand for identification | as by a sentry |
| active site | the part of an enzyme or antibody where the chemical reaction occurs |
| active | a person who is a participating member of an organization, the club issues a list of members, both the actives and the retirees |
| active citizen | a citizen who takes an active role in the community (as in crime prevention and neighborhood watch) |
| active trust | a trust in which the trustee must perform certain duties |
| demand deposit | a bank deposit from which withdrawals can be made without notice |
call loan
demand loan | a loan that is repayable on demand |
| demand note | a note payable on demand |
| active birth | childbirth during which the mother is encouraged to be an active participant |
| active transport | transport of a substance (as a protein or drug) across a cell membrane against the concentration gradient, requires an expenditure of energy |
| demand | the ability and desire to purchase goods and services, the automobile reduced the demand for buggywhips, the demand exceeded the supply |
| demand-pull inflation | inflation caused by an increase in demand or in the supply of money |
active voice
active | the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb, `The boy threw the ball' uses the active voice |
need
demand | a condition requiring relief, she satisfied his need for affection, God has no need of men to accomplish His work, there is a demand for jobs |
| active immunity | a form of acquired immunity in which the body produces its own antibodies against diseaseausing antigens |
active agent
active | chemical agent capable of activity |
wetting agent
wetter
surfactant
surface-active agent | a chemical agent capable of reducing the surface tension of a liquid in which it is dissolved |
be active
move | be in a state of action, she is always moving |
| demand | request urgently and forcefully, The victim's family is demanding compensation, The boss demanded that he be fired immediately, She demanded to see the manager |
| demand exact | claim as due or just, The bank demanded payment of the loan |
| demand | ask to be informed of, I demand an explanation |
| demand | summon to court |
| demand | lay legal claim to |
necessitate
ask
postulate
need
require
take
involve call for
demand | require as useful, just, or proper, It takes nerve to do what she did, success usually requires hard work, This job asks a lot of patience and skill, This position demands a lot of personal sacrifice, This dinner calls for a spectacular dessert, This intervention does not postulate a patient's consent |
| active | characterized by energetic activity, an active toddler, active as a gazelle, an active man is a man of action |
| active | engaged in full-time work, active duty, though past retirement age he is still active in his profession |
| active | full of activity or engaged in continuous activity, an active seaport, an active bond market, an active account |
| active | tending to become more severe or wider in scope, active tuberculosis |
| active | disposed to take action or effectuate change, a director who takes an active interest in corporate operations, an active antagonism, he was active in drawing attention to their grievances |
| active | (of e.g. volcanos) erupting or liable to erupt, active volcanos |
| active | (of e.g. volcanos) capable of erupting |
active
dynamic | (used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being |
| active | expressing that the subject of the sentence has the semantic function of actor: Hemingway favors active constructions |
| active | exerting influence or producing a change or effect, an active ingredient |
| surface-active | capable of lowering the surface tension of a liquid, used especially of detergents |
| active | (of the sun) characterized by an increased occurrence of sunspots and flares and radio emissions |
coveted
desired
in demand(p)
sought after | greatly desired |
active
alive(p) | in operation, keep hope alive, the tradition was still alive, an active tradition |
active
participating | taking part in an activity, an active member of the club, he was politically active, the participating organizations |
active
combat-ready
fighting(a) | engaged in or ready for military or naval operations, on active duty, the platoon is combat-ready, review the fighting forces |