proc·to·de·um also proc·to·dae·um 
(prŏk′tə-dēəm)
(prŏk′tə-dēəm)n. pl. proc·to·de·a (-dēə) or proc·to·de·ums also proc·to·dae·a (-dēə) or proc·to·dae·ums
An inward fold on the surface of the embryonic ectoderm that develops into part of the anal passage.
[New Latin prōctodeum : Greek prōktos, anus + New Latin -odeum (probably from Greek hodaion, neuter of hodaios, on the way, from hodos, way).]
- divest
- divestiture
- divestment
- dividable
- divide
- uncertainly
- uncertainness
- uncertainty
- uncertainty principle
- uncertified
- unchain
- unchainable
- unchallengeable
- unchallengeably
- unchangeability
- unchangeable
- unchangeableness
- unchangeably
- unchanging
- unchangingly
- unchangingness
- uncharacteristic
- uncharacteristically
- uncharged
- uncharitable