a. Ent. and Zool. [ad. L. explānāt-us, pa. pple. of explānāre to flatten out (see EXPLAIN).] Spread out flat.
1846. Dana, Zooph., iv. (1848), 67. Such forms have been called explanate or foliaceous.
1848. Maunder, Treas. Nat. Hist., App., Explanate, when the sides of the prothorax are so depressed and dilated as to form a broad margin.