A single, closely packed
layer of atoms or molecules. The term floating monolayer is used for certain spread monolayers
or
films which are in the condensed — often solid — state. The term
Langmuir monolayer has recently been coined for spread monolayers. This usage is not recommended.
Source:
PAC, 1994, 66, 1667
(Thin films including layers: terminology in relation to their preparation and characterization
(IUPAC Recommendations 1994))
on page 1672
See also:
Orange Book, p. 251