Plain English Meaning
A pilot who is trained and legal to fly only when the weather is clear enough to see outside and navigate by looking out the window. They are not qualified to fly through clouds or in poor visibility using cockpit instruments alone.
Full Definition
A pilot who is certificated and current to fly under Visual Flight Rules only, meaning they are qualified to fly when weather conditions allow them to navigate and avoid other aircraft by outside visual reference, but are not certificated or current to fly solely by reference to instruments in clouds or low-visibility conditions.
Context Anchor
Seen in weather, -management, and discussions, especially when deciding whether are safe for a without relying on .