n.
Pronunciation: ˌ d ī - ə -p ə - ' d ē -s ə s
Function: noun
Inflected Form: plural -de · ses \ - ˌ s ē z \
Etymology: New Latin, from Greek diap ē d ē sis, literally, act of leaping through, from diap ē dan to leap through, from dia- + p ē dan to leap
Date: 1625
: the passage of blood cells through capillary walls into the tissues