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a miniature garden in an artificial environment, in which small plants and animals may be kept as ornament or for educational purposes. Fish bowls, small fish tanks, large bottles, and carboys are often employed as containers for terrariums; such vessels permit the necessary entrance of light for photosynthesis by the plants, and are suitable for display. The most important aspect of a terrarium is its relatively high humidity, maintained either by using a container with only a small aperture or by keeping the container covered. The humid atmosphere enables mosses and other sensitive woodland plants to flourish.



an enclosure for keeping small terrestrial animals, mainly amphibians and reptiles, and for observing their habits. A terrarium consists of a box with walls that are partially covered with glass or a fine-meshed screen. The bottom has a layer of sand or soil covered with pebbles, moss, turf, and plants. A shallow vessel partially buried in the bottom is filled with water that is periodically changed.

Terrariums are usually lighted and heated electrically; however, natural lighting, preferably direct sunlight, is also necessary. A terrarium must have a constant temperature and humidity level and a flow of fresh air. An open terrarium is a small fenced-off area where animals are kept under natural conditions.


Chernomordikov, V. V. Kak soderzhat’ presmykaiushchikhsia. Moscow, 1950.
Nietzke, G. Die Terrarientiere, vols. 1–2. Stuttgart, 1969–72.


1. an enclosure for keeping small land animals
2. a glass container, often a globe, in which plants are grown
References in periodicals archive ?
They can be planted in an extra-humid closed terrarium that ensures high humidity.
The beauty of the terrarium is in the detail," explained Mona.
Cool interiors are upping the variety of plant pots in their ranges, and there's a revival of everything from terrariums to hanging planters as decorative elements.
The tiger comes out of one of the two caves in the terrarium, stands on its back paws, its front ones resting on top of the glass, and roars for a couple of seconds.
Use the inquiry process to design, build, and observe a butterfly's behavior in an artificial environment such as terrarium.
With the scissors, cut away and discard the top of the bottle to make the base of the terrarium.
The organism(s) to be housed in the terrarium, and their specific abiotic requirements, must be researched before construction begins.
Put lid on jar and place terrarium on indoor table or countertop in medium sun.
During the past ten years I have produced a variety of terrarium designs, trying to come up with the optimum captive habitat for the spiders, both to promote good health and longevity.
Each sells for $25 and contains a domed terrarium, growing medium, four to five packs of exotic plant seeds, colored decals, colored plant stakes, colored gravel, and such accessories as little dinosaurs, space aliens or fool's gold.
From learning the basics of body surfing, to making a model of the solar system markers, tape and simple toilet paper, to creating a terrarium, rubbing leaves, pressing flowers, and even croquet, The Kids' Summer Fun Book is a treasury of both time-tested and inventive activities.
It's a pic that's akin to a terrarium of plastic flowers--gaudily decorative, but airless and lifeless.