Wiktionary
troughlike
a. Resembling a trough.
Usage examples of "troughlike".
He carried them back to the log and spilled them, amidst a shower of sparks and smoke, into the troughlike hole they were gouging out.
I took some meat as it was carried through the throng by servants bearing enormous wooden troughlike vessels on poles.
The power room, supplied by solar radiation focused on a mercury boiler by a troughlike solar mirror, was spotless.
They were riding down a long, troughlike valley that was bracketed for its entire length by two flat-topped ridges.