Sentence:  In the presence of a low iodine intake , thyroglobulin labelled in vivo with * * f is found to contain more mono-iodotyrosine than <WSD>normal</WSD> , the amounts of di-iodotyrosine and iodothyronines being correspondingly reduced . 
Meaning of the word marked with <WSD> tags:  conforming with or constituting a norm or standard or level or type or social norm; not abnormal