Reentrant :: Reentrant (a.) Reentering; pointing or directed inwardds; as, a re/ntrant angle..
Registrant :: Registrant (n.) One who registers; esp., one who , by virtue of securing an official registration, obtains a certain right or title of possession, as to a trade-mark..
Remonstrant :: Remonstrant (a.) Inclined or tending to remonstrate; expostulatory; urging reasons in opposition to something.
Remonstrant :: Remonstrant (n.) one of the Arminians who remonstrated against the attacks of the Calvinists in 1610, but were subsequently condemned by the decisions of the Synod of Dort in 1618. See Arminian..