— proctodeal , adj.
/prok'teuh dee"euhm/ , n. , pl. proctodea /-dee"euh/ , proctodeums . Embryol.
a depression in the ectoderm of the anal region of a young embryo, which develops into part of the anal canal.
[ 1875-80; prokt- PROCT- + NL - odeum hodaîon, neut. of hodaîos on or by the way; see -ODE 2 , -EUM ]