Outstretched means reached out to full length. Arms, wings, a hand offered.
It goes in front of a noun almost always, so outstretched arms and an outstretched hand are the standard phrases, and both carry warmth, since the gesture is one of welcome or of asking. Birds are described with outstretched wings. The word is a compound of out and stretched and it needs no explanation, which is part of why it is so common in descriptive writing.
1adjectiveoutstretchedExtended to full length.
“She came down the path with outstretched arms.”