Etymology
Meaning
An allergen is a substance that causes an allergic reaction in a person who has become sensitized to it.
Origin
The term "allergen" was first used in 1906 by the Austrian pediatrician Clemens von Pirquet. Von Pirquet coined the term to describe the substance that triggered an allergic reaction in a person who had previously been sensitized to it. The term "allergy" itself had been coined earlier, in 1905, by the Austrian physician Charles Richet.
Etymology Allergy is a late 19th century term coined by the Austrian physician Clemen
Etymology The word antigen is derived from the Greek words anti meaning against
Etymology Antigen body Meaning A protein produced by the immune system in resp
Etymology Hypo Greek prefix meaning beneath or under Allergen Greek word meani
Etymology The word hypo comes from the Greek word hypo which means under or bel
Etymology Greek ἀλλέργεια allergia meaning other reaction or altered re
Etymology The word substance is derived from the Latin word substantia which means
Etymology The word bead comes from the Old English word bede which means prayer T
Etymology Latin praesumere praesumere pre before sumere to take Meaning To
Etymology The name Jehovah is an Anglicization of the Hebrew name Yahweh יהוה
Etymology The word fact is derived from the Latin word factum which means a thing
Etymology The phrase brown nose is derived from the practice of polishing shoes with b
Etymology The word fickle comes from the Middle English word fikel which means dece
Etymology Latin crux meaning cross Meaning A crucial point issue or questi
Etymology The word mature derives from the Latin word maturus meaning ripe full gr
Etymology The word beam has several different origins Old English bēam log tre
