one of the middle, or second, pair of legs of an insect
midleg in American English
(noun ˈmɪdˌleɡ, adverb ˈmɪdˈleɡ)
noun
1.
the middle part of the leg
2.
one of the second pair of legs of an insect
adverb
3.
at the middle of the leg
Word origin
[1580–90; mid- + leg]This word is first recorded in the period 1580–90. Other words that entered Englishat around the same time include: academic, cockpit, humanist, motor, stigma