diff --git a/documentation/ref-manual/ref-terms.xml b/documentation/ref-manual/ref-terms.xml
index e746b4b7c6..b8320dbfd6 100644
--- a/documentation/ref-manual/ref-terms.xml
+++ b/documentation/ref-manual/ref-terms.xml
@@ -160,6 +160,20 @@
                 file defines variables for the Texas Instruments ARM Cortex-A8
                 development board).
                 </para></listitem>
+            <listitem><para id='term-container-layer'>
+                <emphasis>Container Layer:</emphasis>
+                Layers that hold other layers.
+                An example of a container layer is the
+                <filename>meta-intel</filename> layer.
+                This layer contains BSP layers for the Intel-core2-32
+                <trademark class='registered'>Intel</trademark> Common Core
+                (Intel-core2-32) and the Intel-corei7-64
+                <trademark class='registered'>Intel</trademark> Common Core
+                (Intel-corei7-64).
+                the <filename>meta-intel</filename> layer also contains
+                the <filename>common/</filename> directory, which contains
+                common content across those layers.
+                </para></listitem>
             <listitem><para id='cross-development-toolchain'>
                 <emphasis>Cross-Development Toolchain:</emphasis>
                 In general, a cross-development toolchain is a collection of