BioConcepts

endocrinologyendocrinologie (fr.); Endokrinologie (ger.)

• The physiology or study of the endocrines. (OED 2011)
  category regulation

  1911

  Endocrinologie […:] études sur la physio-pathologie du corps thyroïde et des autres glandes endocrines

  Lévi, L. & Rothschild, H. de (1911). Endocrinologie. Nouvelles études sur la physio-pathologie du corps thyroïde et des autres glandes endocrines.

  1913

  endocrinology

  Dorland, W.A.N. (1913). Illustrated Medical Dictionary, 7th ed.: 722. (acc. to OED)

  1913

  endocrinologie

  Naamé (1913). Études d’endocrinologie.

  1919

  The discovery of [...] internally formed drugs has led to the development of a new branch of physiology to which the term “endocrinology,” or physiology of the internally secreting glands, has been applied.

  Schafer, E.S. (1919). Developments of physiology. Nature 207-208: 208.
  

  1935

  endocrinology […]. The study of the internal secretions.

  Dorland, W.A.N. (1935). Illustrated Medical Dictionary, 17th ed.: 456.