Clarify the terminology: PMC and PMC Member (#205)
diff --git a/source/contributor-ladder.md b/source/contributor-ladder.md
index d4e3542..4f6af92 100644
--- a/source/contributor-ladder.md
+++ b/source/contributor-ladder.md
@@ -83,9 +83,17 @@
also has a private mailing list, which is for discussion of topics such
as the addition of new committers and PMC members, and any other
sensitive topics.
-
[See more information about being a PMC member](/pmc/).
+### Terminology: PMC and PMC Member
+
+Note that the term _PMC_ refers to the _group_ that steers a project.
+
+The _people_ who are members of the group are called _PMC Members_.
+
+Referring to those people as _PMCs_ is incorrect and can be confusing;
+please avoid doing that.
+
## Foundation Member
When someone has been involved at the ASF for a while, they may be
