Online searches are free. There is a bound book version of the dictionary available for sale. Agricultural and Environmental Biotechnology Dictionary by Susan Allender-Hagedorn and Charles Hagedorn, Virginia Tech Univ. This site provides a list of terms and definitions, but no tabs or search functions. This site will search for a word, or allow scanning lists of words organized by first letter.
Online searches are free.
There is a bound book version of the dictionary available for sale. Biotech's Life Science Dictionary cosponsored by BioTech Resources Web Project at Univ Texas and Indiana Institute for Molecular and Cellular Biology at Indiana University. This site has a powerful search engine that will find the definition for a word, or find words that have a certain word in their definitions. Over 8300 terms and definitions with links to a variety of other searchable databases. Talking Glossary of Genetic Terms, National Human Genome Research Institute provides written definitions, phonetic spellings and illustrations, spoken explanations of glossary terms.