Looking for Definitions

In QTSaver I get one searchable results page with info from several sites.
It is a very convenient to use this for sophisticated searches within the page.
For example - to look for definitions.

Definitions tend to include in them the words: "is a" .

This is what I got after looking for "is a" in the results page of the search-word "apraxia" in QTSaver:

• Apraxia is a neurological disorder characterized by the inability to perform learned (familiar) movements on command, even though the command is understood and there is a willingness to perform the movement. Both the desire and the capacity to move are present but
  the person simply cannot execute the act.
• Oculomotor apraxia is a condition in which patients find it
  difficult to move their eyes.
• Apraxia is a motor disorder in which volitional or voluntary movement is impaired without muscle weakness. The ability to select and sequence movements is impaired.
  

In usual search engines it is very hard to execute such drills since you have to do it again and again for each link.

I looked In Google for the word "Dysphagia" and found a definition in the snippet without even opening the link
That's wonderful! I said to myself.

But it was only after I read 7 snippets that I stumbled on that definition.