Having the same focus or foci. Used of a lens.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "confocal" in a sentence
"The principal techniques in cell biologists' toolboxes are known as confocal and wide-field microscopy."
"However, both fused and non-fused receptors translocated to the same endocytic compartment, as determined by dual-label confocal analysis of cells co-expressing both proteins and transferrin co-localization."
"The scientists will study the building blocks of these synapses - specialized proteins - using genetics, molecular biology and a technique known as confocal microscopy."