Д140
МЕЖДУ ДЕЛОМ (ДЕЛ('5)
PrepPthese forms onlyadvin one's free moments, during intervals between other engagements
in between other things (one's other activities)
betweentimes (betweenwhiles)(in limited contexts) when one has (can spare) a minute (a moment)when one can snatch a free momentwhen one has a spare moment (a moment to spare)on the side.