Emily Dickinson Lexicon

IN'SU-LATE, v.t. [L. insula, an isle.]

1. To place in a detached situation, or in a state to have no communication with surrounding objects.
2. In architecture, to set a column alone or not contiguous to a wall.
3. In electrical experiments, to place on a non-conducting substance, or in a situation to prevent communication with the earth.
4. To make an isle. [Little used.]