A film or layer of a compound one molecule thick.(noun)
A layer of cells one cell thick, grown in a culture.(noun)
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 "monolayer" in a sentence
"Long-term monolayer culture protocol of human stem cells using human recombinant laminin-511"
"My guess is that it is still a monolayer, but spread out as monolayers do on the physical micro-surface area, which in the case of regolith, is much larger than the geometrical area."
"So a layer of 1 nm, not 1 m – more like it. a molecular monolayer, as one would expect on a cold vacuum chamber."