Deltoidal (adj)
del-toy-dal
of or relating to a river delta.
Deltoidal means “delta-shaped,” and river deltas are so named for their resemblance to the triangular Greek letter delta
Example sentences
“The low tide revealed a deltoidal cluster of narrow channels at the estuary mouth.”
Mackle (verb) mak-ul to blur, as from a double impression in printing First used in 1585–95. A variant of earlier macle, makle; earlier macule (from the Latin macula, “spot, blemish”).…