Noah's ark
noun
1
or less commonly Noah's ark shell : ark shell
especially : a common ark shell (Arca noae)
2
: a series of straight parallel narrow bands of cloud that by perspective appear to spring from common points on opposite sides of the horizon and to arch and spread apart as they approach the zenith
3
: a set of toys representing Noah's ark and the animals in it
4
a
: lady's slipper sense 1
b
: a monkshood (Aconitum napellus)
Word History
Etymology
so called from the supposed similarity to Noah's ark (Genesis 6:14–20)