an impermanent form of acquired immunity in which antibodies against a disease are acquired naturally (as through the placenta to an unborn child) or artificially (as by injection of antiserum)
any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
an act exempting someone; "he was granted immunity from prosecution"
a deduction allowed to a taxpayer because of his status (having certain dependents or being blind or being over 65 etc.); "additional exemptions are allowed for each dependent"
the action of opposing something that you disapprove or disagree with; "he encountered a general feeling of resistance from many citizens"; "despite opposition from the newspapers he went ahead"
the military action of resisting the enemy's advance; "the enemy offered little resistance"
group action in opposition to those in power
(psychiatry) an unwillingness to bring repressed feelings into conscious awareness
the degree of unresponsiveness of a disease-causing microorganism to antibiotics or other drugs (as in penicillin-resistant bacteria)
any mechanical force that tends to retard or oppose motion
freedom of choice; "liberty of opinion"; "liberty of worship"; "liberty--perfect liberty--to think or feel or do just as one pleases"; "at liberty to choose whatever occupation one wishes"
personal freedom from servitude or confinement or oppression
the middle area of the human torso (usually in front); "young American women believe that a bare midriff is fashionable"
an intermediate part or section; "A whole is that which has beginning, middle, and end"- Aristotle
time between the beginning and the end of a temporal period; "the middle of the war"; "rain during the middle of April"
between an earlier and a later period of time; "in the middle years"; "in his middle thirties"
of a stage in the development of a language or literature between earlier and later stages; "Middle English is the English language from about 1100 to 1500"; "Middle Gaelic"
the act of giving a formal (usually written) authorization
a legal document giving official permission to do something
freedom to deviate deliberately from normally applicable rules or practices (especially in behavior or speech)
excessive freedom; lack of due restraint; "when liberty becomes license dictatorship is near"- Will Durant; "the intolerable license with which the newspapers break...the rules of decorum"- Edmund Burke
authorize officially; "I am licensed to practice law in this state"
characterized by energetic activity; "an active toddler"; "active as a gazelle"; "an active man is a man of action"
engaged in full-time work; "active duty"; "though past retirement age he is still active in his profession"
full of activity or engaged in continuous activity; "an active seaport"; "an active bond market"; "an active account"
tending to become more severe or wider in scope; "active tuberculosis"
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"
(of e.g. volcanos) erupting or liable to erupt; "active volcanos"
(of e.g. volcanos) capable of erupting
expressing action rather than a state of being; used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')
expressing that the subject of the sentence has the semantic function of actor: "Hemingway favors active constructions"
exerting influence or producing a change or effect; "an active ingredient"
of the sun; characterized by a high level activity in sunspots and flares and radio emissions
in operation; "keep hope alive"; "the tradition was still alive"; "an active tradition"
taking part in an activity; "an active member of the club"; "he was politically active"; "the participating organizations"
engaged in or ready for military or naval operations; "on active duty"; "the platoon is combat-ready"; "review the fighting forces"