The process whose specific outcome is the progression of the deltoid tuberosity over time, from its formation to the mature structure. The deltoid tuberosity is the region on the shaft of the humerus to which the deltoid muscle attaches. The deltoid tuberosity develops through endochondral ossification in a two-phase process; an initiating tendon-dependent phase, and a muscle-dependent growth phase. [ http://purl.obolibrary.org/obo/UBERON_0002498 GOC:yaf http://www.ncbi.nlm.nih.gov/pubmed/17567668 http://en.wikipedia.org/wiki/Deltoid_tuberosity ]