n. 论文, 专著

[ noun ]
a formal exposition
<noun.communication>

Treatise \Trea"tise\, n. [OE. tretis, OF. treitis, traitis, well
made. See {Treat}.]
1. A written composition on a particular subject, in which
its principles are discussed or explained; a tract.
--Chaucer.

He published a treatise in which he maintained that
a marriage between a member of the Church of England
and a dissenter was a nullity. --Macaulay.

Note: A treatise implies more form and method than an essay,
but may fall short of the fullness and completeness of
a systematic exposition.

2. Story; discourse. [R.] --Shak.