/pli kop"teuhr euhn/ , adj.
1. Also, plecopterous . belonging or pertaining to the insect order Plecoptera, comprising the stoneflies.
n.
2. a plecopteran insect; stonefly.
[ 1885-90; Plecopter ( a ) the order ( plék ( ein ) to twine, twist + -o- -O- + -ptera, neut. pl. of -pteros -PTEROUS) + -AN; so named in reference to the reticulated wings, which twist back upon themselves when the insect is resting ]