autofluorescence

noun
au·to·fluo·resc·ence | \ ˌȯ-(ˌ)tō-flu̇-ˈre-sᵊns , -flȯ- \
plural autofluorescences

Definition of autofluorescence 

: fluorescence emitted naturally by a biological substance In ultraviolet light, the material has a yellow to silvery autofluorescence that differs from the orange autofluorescence of lipofuscin. —Robert S. Rust and Diane Karluk, New England Journal of Medicine, 29 Aug. 2002 Spectral-imaging technologies will discriminate emissions from multiple fluorescent probes, permitting simultaneous analysis of distinct optical probes and dramatically reducing background autofluorescence. —Harvey R. Herschman, Science, 24 Oct. 2003

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Other words from autofluorescence

autofluorescent \ˌȯ-(ˌ)tō-flu̇-ˈre-sᵊnt, -flȯ- \ adjective
Two imaging techniques confirmed that blood flow was low in these tumors, and delivery of the naturally autofluorescent anticancer drug doxorubicin was decreased compared with delivery to transplanted tumors or normal tissue. —Peter Olson and Douglas Hanahan, Science, 12 June 2009

First Known Use of autofluorescence

1916, in the meaning defined above

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The first known use of autofluorescence was in 1916

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