Meaning & use

terrarium

noun·Everyday

Last updated

UK/təˈreəriəm/
US/təˈreriəm/

Meanings

  1. nouncountable

    A glass container holding soil and small plants, often closed, kept as a miniature garden indoors.

    Grammar: Countable: build a terrarium, two terrariums.

    Patterns

    • a terrarium of something
    • build a terrarium

    She planted tiny ferns and moss in a glass terrarium on her desk.

    The children built a terrarium from a large jar, soil and pebbles.

    A closed terrarium rarely needs watering because moisture cycles inside it.

  2. nouncountable

    An enclosure with a lid and controlled warmth where small land animals such as lizards, snakes or insects are kept.

    Grammar: Often has a noun before it that names the animal: a gecko terrarium.

    Patterns

    • a terrarium for something

    He keeps a bearded dragon in a heated terrarium in his bedroom.

    The terrarium has a rock to climb and a small bowl of water.

    The pet shop sells lights and heaters for reptile terrariums.

Word forms

pluralterrariums
plural (alternative)terraria

Common combinations

build a terrarium
We built a terrarium from an old fish tank.
glass terrarium
A glass terrarium lets in plenty of light.
closed terrarium
A closed terrarium recycles its own water.
desert terrarium
A desert terrarium holds sand and small cacti.
reptile terrarium
The reptile terrarium needs a heat lamp.
miniature garden in a terrarium
She made a miniature garden in a terrarium for her sister.

Synonyms and how they differ

vivarium
A vivarium is a broader word for any enclosure that keeps living animals or plants for observation, so it is more scientific and often used in labs.
glass garden
Glass garden is a casual description of the plant-focused sense and is not used for animals.
plant case
Plant case is an old-fashioned word for a sealed glass box for growing plants.

Word family

terra noun
the Latin word for earth, which gives terrarium its root
terrestrial adjective
living or relating to land
aquarium noun
a water tank for fish
terraria noun
the Latin-style plural

Commonly confused: terrarium or aquarium?

terrarium vs aquarium

An aquarium holds water and aquatic life such as fish, whereas a terrarium holds soil and land plants or animals.

Practice

She planted tiny ferns and moss in a glass ___ on her desk.

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