in·trorse (ĭn'trôrs') adj.
Botany Facing inward; turned toward the axis. Used especially of anthers.
[Latin intrōrsus, contraction of intrōversus, inward : intrō-, to the inside; see en in Indo-European roots + versus, past participle of vertere, to turn; see wer-2 in Indo-European roots.]
introrse (ĭn'trôrs') Pronunciation Key
Facing inwards toward the axis around which a flower is arranged. Used of anthers and the direction in which they open to release pollen.