incurrent
Carrying inward; relating to an inward current.
In the sycon, the sponge type of intermediate complexity, water enters the ostia through small radially arranged incurrent canals formed by folding of the body wall.
Where it comes from
From Latin incurrēns (stem incurrēnt-), present active participle of incurrō (“run into, towards or upon”) (whence also incur), from in + currō (“run”).
Adapted from the Wiktionary entry incurrent (CC BY-SA 4.0).