Ob"stru*ent , n. Anything that obstructs or closes a passage; esp., that which obstructs natural
passages in the body; as, a medicine which acts as an obstruent.
Ob"stru*ent (?), a. [L. obstruens, p. pr. of obstruere. See Obstruct.]
Causing obstruction; blocking
up; hindering; as, an obstruent medicine. Johnson.