Definition List

HTML Definition List

To mark up a definition list, you need three HTML elements; a container <dl>, a definition term <dt>, and a definition description <dd>.
The <dl> tag stands for a definition list.
The <dt> tag stands for a definition term.
The <dd> tag stands for a definition description.
The <dl> tag is used in conjunction with <dt>.

<dt> tag, definition term, followed by a <dd> tag which is a  definition description.
There doesn't have to be one <dt> followed by one <dd>, there can be any number of either.
One word meaning various different terms, there might me several <dd>, i.e.definition description.

Example

<h1>Some Networking Term</h1>
<dl>
<dt>HSRP</dt>
<dd>Hot Standby Router Protocol.</dd>
<dt>WCCP</dt>
<dd>Web Cache Communication Protocol.</dd>

<dt>VMPS</dt>
<dd>VLAN Management Policy Server.</dd>
<dd>VLAN Membership Policy Server</dd>
 <dt>MPLS</dt>
<dd>Multi-Protocol Label Switching </dd>
 <dt>SSTP</dt>
<dd>Secure Socket Tunneling Protocol</dd>
 <dt>CDMA</dt>
<dd>Code Division Multiple Access</dd>
 <dt>GPRS</dt>
<dd>General Packet Radio Service</dd>
 <dt>IPsec</dt>
<dd>Internet Protocol Security </dd>
 <dt>LDAP</dt>
<dd>Lightweight Directory Access Protocol </dd>
 <dt>IMAP</dt>
<dd>Internet message access protocol </dd>
</dl>

Output