noun, plural ter·rar·i·ums, ter·rar·i·a [tuh-rair-ee-uh] /təˈrɛər i ə/.
Examples from the Web for terrarium
There is another insect out in the garden that ought to be an inmate of every terrarium this fall, the green cabbage-worm.
In the bottom of the terrarium were three inches of rich soil, covered with the delicate green of sprouting grass-seed.
Every one can also find crickets, and no terrarium will be complete without them.
When they have been in the terrarium awhile they will show you how they like to spend the winter.
After rapid nibbling it would drop the tail, and leaving it temporarily would explore the terrarium.