diff --git a/README.md b/README.md
index 58d8781..9fa5883 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 # Suo [![Build Status](https://travis-ci.org/nickelser/suo.svg?branch=master)](https://travis-ci.org/nickelser/suo) [![Code Climate](https://codeclimate.com/github/nickelser/suo/badges/gpa.svg)](https://codeclimate.com/github/nickelser/suo) [![Test Coverage](https://codeclimate.com/github/nickelser/suo/badges/coverage.svg)](https://codeclimate.com/github/nickelser/suo) [![Gem Version](https://badge.fury.io/rb/suo.svg)](http://badge.fury.io/rb/suo)
 
-:lock: Distributed locks using Memcached or Redis in Ruby.
+:lock: Distributed semaphores using Memcached or Redis in Ruby.
 
-Suo provides a very performant distributed lock solution using Compare-And-Set (`CAS`) commands in Memcached, and `WATCH/MULTI` in Redis. It allows locking both single exclusion (a mutex - sharing one resource), and multiple resources.
+Suo provides a very performant distributed lock solution using Compare-And-Set (`CAS`) commands in Memcached, and `WATCH/MULTI` in Redis. It allows locking both single exclusion (like a mutex - sharing one resource), as well as multiple resources.
 
 ## Installation
 
@@ -70,10 +70,6 @@ suo.lock("foo") do |lock|
 end
 ```
 
-## Semaphore
-
-With multiple resources, Suo acts like a semaphore, but is not strictly a semaphore according to the traditional definition, as the lock acquires ownership.
-
 ## TODO
  - more race condition tests
 
diff --git a/suo.gemspec b/suo.gemspec
index 542de89..917c258 100644
--- a/suo.gemspec
+++ b/suo.gemspec
@@ -10,7 +10,7 @@ Gem::Specification.new do |spec|
   spec.email         = ["nick.elser@gmail.com"]
 
   spec.summary       = %q(Distributed locks using Memcached or Redis.)
-  spec.description   = %q(Distributed locks using Memcached or Redis.)
+  spec.description   = %q(Distributed locks (mutexes & semaphores) using Memcached or Redis.)
   spec.homepage      = "https://github.com/nickelser/suo"
   spec.license       = "MIT"