Boston Fern The most common indoor fern, Boston ferns are long-lived plants that can reach more than 5 feet tall and wide at maturity (though indoors they rarely reach that size). Fern breeders have released a large number of varieties -- from selections with golden fronds to fantastically frilled fronds.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  green room(Noun) (entertainment) In a television studio, theatre or concert hall, the room where performers await their entrance. 2  green room(Noun) The inside of a tube (ie. of a wave making a tube).
The latter contains the famous 'Oval Office', the president's main office. The room was modeled on the 'Blue Room', an oval room at the center of the White House. The building contains a total of 132 rooms, some of them can be visited on a tour, including the Green Room, Blue Room, Red Room and State Dining Room.