interspace

noun

1. A space or interval between two things; an interstice

   “It is the object of the mechanical atomistic philosophy to confound synthesis with synartesis, or rather with mere juxtaposition of corpuscles separated by invisible interspaces.”

   “Tess sat up in bed, lost in a vague interspace between a dream and this information.”

   “In a review of over 1000 interdigital clavuses, 65% were found in the fourth interspace […]”

verb

1. (transitive)To place (things) spaced out between other things.
2. (transitive)To sow or seed (an area) with things spaced out between other things.

   “When such species as European larch, white pine, or black walnut are widely spaced, in order to promote the most rapid growth, it may be advisable to interspace the area with some more tolerant and slower-growing species.”