interstice
noun
[ ɪnˈtəːstɪs ]
• an intervening space, especially a very small one.
• "sunshine filtered through the interstices of the arching trees"
Similar:
space,
gap,
interval,
aperture,
opening,
hole,
cranny,
crevice,
chink,
slit,
slot,
crack,
breach,
vent,
Origin:
late Middle English: from Latin interstitium, from intersistere ‘stand between’, from inter- ‘between’ + sistere ‘to stand’.