organo-

from the GNU version of the Collaborative International Dictionary of English.

• A combining form denoting relation to, or connection with, an organ or organs.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• prefix Used to form words relating to organs of the body
• prefix Used in chemistry to form adjectives and nouns describing compounds in which an organic group is attached to an inorganic element or grouping (sometimes hyphenated)
• prefix Used to form words relating to organic matter (in the soil etc)