What does DICK stand for?

Dickcissel - Common English name - American Ornithologists Union four-character bird identification - Scientific name: Spiza Americana (IBP)

Dickirson Equipment - NCIC trailer make code

detective (SAUS)

Ethyldichloroarsine - Organic chemistry (DAVI)

Dickens' English Chancery Reports - A publication (DLA)

Dickinson's New Jersey Equity Precedents - A publication (DLA)