WAI-ARIA: Role=Definition

Inline Definition Example

In the example below, the definition of a term that is described in the natural flow of the narrative is associated with the term itself using the aria-labelledby attribute:

<p>The doctor explained it had been a <dfn id="placebo">placebo</dfn>, or <span role="definition" aria-labelledby="placebo"> 
an inert preparation prescribed more for the mental relief of the patient than for its actual effect on a disorder.</span>
</p>

Definition List Example

In the example below, the definitions in a formal definition list are associated with the terms they define using the aria-labelledby attribute:

<dl>
<dt id="anathema">anathema</dt>
<dd role="definition" aria-labelledby="anathema">a ban or curse solemnly pronounced by ecclesiastical authority
and accompanied by excommunication</dd>
<dd role="definition" aria-labelledby="anathema">a vigorous denunciation : cursor</dd>

<dt id="homily">homily</dt>
<dd role="definition" aria-labelledby="homily">a usually short sermon</dd>
<dd role="definition" aria-labelledby="homily">a lecture or discourse on or of a moral theme</dd>
</dl>

HTML Example

<span role="term" aria-labelledby="def1">Love</span>
<span id="def1" role="definition">an intense feeling of deep affection.</span>