The topic of allergies has become routine in our lives, and certainly most everyone has an idea of what an allergy is. An allergy is an abnormal reaction by a person's immune system against a normally harmless substance. A person without allergies would have no reaction to this substance, but when a person who is allergic encounters the trigger, the body reacts by releasing chemicals which cause allergy symptoms.
Definition of eisteddfod. plural. eisteddfods. play \Ä«-Ësteth-ËvoÌdz, Ä-\ or. eisteddfodau. play \Ä«-Ësteth-ËvoÌ-ËdÄ«, Ä-\. : a usually Welsh competitive festival of the arts especially in poetry and singing.
Q.E.F. Q.E.F., sometimes written QEF, is an abbreviation for the Latin phrase quod erat faciendum (that which was to be done). It is a translation of the Greek words used by Euclid to indicate the end of the justification of a construction, while  Q.E.D.  was the corresponding end of proof of a theorem (cf..E.F. Q.E.F., sometimes written QEF, is an abbreviation for the Latin phrase quod erat faciendum (that which was to be done). It is a translation of the Greek words used by Euclid to indicate the end of the justification of a construction, while  Q.E.D.  was the corresponding end of proof of a theorem (cf.