monodeiodination
/ˌmɒnə(ʊ)diːˈʌɪədɪˌneɪʃn/Biochemistry
noun
The removal of a single iodine atom from a compound; specifically the removal of an atom of iodine from the hormone thyroxine (tetraiodothyronine) to form triiodothyronine.
Origin
1960s; earliest use found in Endocrinology. From mono- + deiodination.