GC: n

S: http://www.cdt-babes.ro/servicii/allergology-clinical-immunology.php (last access: 26 September 2015); http://www.medicine.uct.ac.za/allergology-and-clinical-immunology (last access: 26 September 2015).

N: 1. From «allergy» (German Allergie, from all- + Greek ergon work; first Known Use: 1910) and «-logy» (word-forming element meaning «a speaking, discourse, treatise, doctrine, theory, science,» from Greek -logia -often via French -logie or Medieval Latin -logia-, from root of legein «to speak;» thus, «the character or deportment of one who speaks or treats of -a certain subject-)».
2. The branch of medicine devoted to the study of allergy, its etiology, diagnosis, and treatment.

S: 1. OED – http://www.etymonline.com/index.php?term=-logy (last access: 26 September 2015). MW – http://www.merriam-webster.com/medical/allergology (last access: 26 September 2015); 2. TERMIUM PLUS (last access: 26 September 2015).

GV: allergiology

S: GDT (last access: 26 September 2015)

SYN:
S:

CR: allergy, immune system.