underfocus
nounEtymology From under- + focus.
1
The state of a microscope that is focused slightly in front of the specimen
- Images were taken at 2–4 μm underfocus.2015 August 7, Ad de Groof et al., “A Novel Virus Causes Scale Drop Disease in Lates calcarifer”, in PLoS Pathogens, volume 11, →DOI: