Expand abbreviations FIFO and LIFO.
diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
index 1b1d386..b2b02b0 100644
--- a/Doc/library/multiprocessing.rst
+++ b/Doc/library/multiprocessing.rst
@@ -644,8 +644,9 @@
For passing messages one can use :func:`Pipe` (for a connection between two
processes) or a queue (which allows multiple producers and consumers).
-The :class:`Queue`, :class:`SimpleQueue` and :class:`JoinableQueue` types are multi-producer,
-multi-consumer FIFO queues modelled on the :class:`queue.Queue` class in the
+The :class:`Queue`, :class:`SimpleQueue` and :class:`JoinableQueue` types
+are multi-producer, multi-consumer :abbr:`FIFO (first-in, first-out)`
+queues modelled on the :class:`queue.Queue` class in the
standard library. They differ in that :class:`Queue` lacks the
:meth:`~queue.Queue.task_done` and :meth:`~queue.Queue.join` methods introduced
into Python 2.5's :class:`queue.Queue` class.