distend

paisua, pullistua

turvottaa, pullistaa

laajeta puhekieltä To extend or expand, as from internal pressure; to swell
(quote-book)
puhekieltä To extend; to stretch out; to spread out.
1662 Thomas Salusbury, Galileos Dialogue Concerning the Two Chief World Systems'' (Dialogue 2):

These impure and frail matters are conteined within the angust concave of the Lunar Orb, above which with uninterrupted Series the things Celestial distend themselves.

But say, what mean those coloured streaks in heaven / Distended as the brow of God appeased?