From The Collaborative International Dictionary of English v.0.48:
formalized \formalized\ adj. 1. concerned with or characterized by rigorous adherence to recognized forms, especially in religion or art; using formalism; as, highly formalized plays like "Waiting for Godot".
Syn: formalistic. [WordNet 1.5]
2. given formal standing or endorsement; made official or legitimate by the observance of proper procedures. official (vs. unofficial) --- (having official authority or sanction: "official permission"; "an official representative") [WordNet 1.5]
From The Collaborative International Dictionary of English v.0.48:
Formalize \Form"al*ize\ (f[^o]rm"al*[imac]z), v. t. [imp. & p. p. Formalized (f[^o]rm"al*[imac]zd); p. pr. & vb. n. Formalizing (f[^o]rm"al*[imac]`z[i^]ng).] 1. To give form, or a certain form, to; to model. [R.] [1913 Webster]
2. To render formal. [1913 Webster]