"a dextral gastropod shell with the apex upward has its opening on the right when facing the observer"; "a dextral flatfish lies with the right eye uppermost"
is similar to
on or starting from the wearer's right
is similar to
spiraling upward from left to right
"dextrorse vines"
see also
in the same direction as the rotating hands of a clock
see also
using or intended for the right hand
"a right-handed batter"; "right-handed scissors"