thysanura defined in 1951 yearthysanura - thysanura;
thysanura - See also: Apterygota. tibia, (1) Shin-bone. The anterior of the two long bones (other is fibula) of the shank (below the knee) of the hind limb of tetrapod vertebrates. (2) One of the segments (fourth from base) of an insect leg.
near thysanura in Knolik
definition of word "thysanura" was readed 665 times