tachyphylaxis

== English == === Etymology === From tachy- +‎ phylaxis. === Pronunciation === (Received Pronunciation) IPA(key): /ˌtækɪfɪˈlæksɪs/ (General American, Canada) IPA(key): /ˌtækɪfɪˈlæksɪs/, /ˌtækəfəˈlæksɪs/ (General Australian) IPA(key): /ˌtækɪfɪˈlæksɪs/, /ˌtækəfəˈlæksɪs/ (New Zealand) IPA(key): /ˌtɛkəfəˈlɛksəs/ Hyphenation: ta‧chy‧phy‧lax‧is === Noun === tachyphylaxis (plural tachyphylaxes) (medicine) A rapidly decreasing response to a drug following administration of the initial doses. ==== Derived terms ==== tachyphylactic ==== See also ==== mithridatism