Turned or facing inward: an epithet used in describing the direction of bodies, to denote their being turned toward the axis to which they appertain. In botany it is applied to anthers when their valves are turned toward the style.
the GNU version of the Collaborative International Dictionary of English
adjective.
Turning or facing inward, or toward the axis of the part to which it belongs.
adjective.
Facing or turned inwards or towards an axis.
adjective.
Said of anthersdehiscing toward the center of the flower.
Word Usage
"Alexander Braun notices the transformation of pistils into stamens in Chives (_Allium Scorodoprasum_), and in which three stamens appeared in the place of as many pistils, and had extrorse anthers, while the six normal anthers are introrse."