saprobiology

[sap-roh-bahy-ol-uh-jee]
noun
  1. the branch of ecology that studies decaying organic matter or environments, especially saprophytes that derive nourishment in this way.
Related formssap·ro·bi·o·log·i·cal [sap-roh-bahy-uh-loj-i-kuh l] /ˌsæp roʊˌbaɪ əˈlɒdʒ ɪ kəl/, adjectivesap·ro·bi·ol·o·gist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018