- proctodeums
- n. stage in the development of the rectum (of a fetus)
English contemporary dictionary. 2014.
English contemporary dictionary. 2014.
proctodeum — 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; < NL < Gk prokt PROCT + NL odeum … Universalium
proctodeum — noun see proctodaeum * * * 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; NL < … Useful english dictionary