• WordNet 3.6
    • n postscript textual matter that is added onto a publication; usually at the end
    • n postscript a note appended to a letter after the signature
    • ***
Webster's Revised Unabridged Dictionary
    • n Postscript A paragraph added to a letter after it is concluded and signed by the writer; an addition made to a book or composition after the main body of the work has been finished, containing something omitted, or something new occurring to the writer.
    • ***
Century Dictionary and Cyclopedia
    • n postscript An addition made to a written or printed composition as an afterthought, or to state something that has been omitted. A supplement or appendix, as to a book or newspaper.
    • n postscript More commonly, a paragraph added to a letter which has already been concluded and signed by the writer.
    • n postscript Abbreviated P. S.
    • ***
Chambers's Twentieth Century Dictionary
    • n Postscript pōst′skript a part added to a letter after the signature: an addition to a book after it is finished
    • ***


Webster's Revised Unabridged Dictionary
L. postscriptus, (assumed) p. p. of postscribere, to write after; post, after + scribere, to write: cf. F. postscriptum,. See Post-, and Scribe
Chambers's Twentieth Century Dictionary
L., from post, after, scriptum, written, pa.p. of scribĕre, to write.


In literature:

One of the favorite postscripts is that this great king never took off his hat to anybody that ever "blew up" the Nile.
"A Fantasy of Mediterranean Travel" by S. G. Bayne
Again, and by way of postscript No.
"A Book of Burlesques" by H. L. Mencken
But it is proverbial that a woman invariably reserves the most interesting and important item for the postscript.
"The Paternoster Ruby" by Charles Edmonds Walk
Never mind the postscript.
"Erik Dorn" by Ben Hecht
There was a postscript to his news, and a pregnant one.
"Chivalry" by James Branch Cabell
As sometimes happens, pearl of the letter was hidden in the postscript.
"Punch, or the London Charivari, Vol. 146, February 18, 1914" by Various
With a Postscript to the first essay on Junius and his works.
"Notes and Queries, Number 68, February 15, 1851" by Various
The postscript about Vernon suggested a thought that had been often in his mind.
"Eric, or Little by Little" by Frederic W. Farrar
There was a postscript over the page, which Rose had at first overlooked, and she was not sure that Graeme had seen it.
"Janet's Love and Service" by Margaret M Robertson
Mrs. Champney turned to the postscript again.
"Flamsted quarries" by Mary E. Waller

In poetry:

But days grow more stern and more stormy.
No love can men's hardness unbend;
Their brows are contemptuously frowning,
And now comes the postscript, the end.
"Bad Days" by Boris Pasternak

In news:

Monday's PostScript : Mobile stockade blues.
PostScript , the blog in the paper, from Page A-2 of The Post-Standard.
Postscript to Election Night 2012.
'30 Years/30 Lives' -- a Postscript .
The Whys & Wherefores of the Printz Award, Postscript : Practical Matters.
A Postscript By Allan Nevins.
Debra Goldman's Postscript : New World Order.
This postscript won't change Iverson's legacy.
Breeders' Cup Postscript : All is Well.
A scarecrow postscript and more duck news.
An election postscript from two candidates.
KLIN's TV/Radio Sync Experiment, A Postscript .
PDF Export & Postscript Settings.
Postscript Sebastian Junger on Afghanistan's Slain Rebel Leader The Perfect Storm author spent a month with anti-Taliban warrior Ahmad Shah Massoud in 2000.
The following instructions will walk you through the easy process of creating a postscript file.

In science:

Postscript; I have just received communication from Prof. A. S.
Elucidation of the origins of HTSC transport behaviour and quantum oscillations
All PostScript (cid:12)les retrieved for a reviewer are treated uniformly.
Technical Paper Recommendation: A Study in Combining Multiple Information Sources
At the moment, we focus on PostScript for convenience, but there is no reason to limit ourselves to just one (cid:12)le format; the main constraint is being able to extract the words from a document.
Technical Paper Recommendation: A Study in Combining Multiple Information Sources
In the published version, Segal added a foreword/postscript commenting on developments since the original manuscript was written in which he proposes the following definition of conformal field theories.
Supersymmetric field theories and generalized cohomology
Condition (c) is not explicitly mentioned in Segal’s postscript to section 4, but it corresponds to identifying conformal surfaces with parametrized boundary in his bordisms category if they are conformally equivalent relative boundary, which Segal does in the first paragraph of §4.
Supersymmetric field theories and generalized cohomology