An acacia is a kind of tree or bush that grows in very warm climates. If you visit Australia, you're likely to see an acacia.

Acacias are found in places like South America, Africa, and parts of Asia, though the majority of acacias grow in Australia. Many acacias have tiny leaves and are covered in thorns, although there are varieties that aren't thorny — still, the name itself comes from the Greek word akakia, "thorny Egyptian tree," probably rooted in ake, or "thorn."

Definitions of acacia
  1. noun
    any of various spiny trees or shrubs of the genus Acacia
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    shittah, shittah tree
    source of a wood mentioned frequently in the Bible; probably a species of genus Acacia
    any of various Australasian trees yielding slender poles suitable for wattle
    Acacia catechu, Jerusalem thorn, catechu
    East Indian spiny tree having twice-pinnate leaves and yellow flowers followed by flat pods; source of black catechu
    Acacia farnesiana, cassie, flame tree, huisache, mimosa bush, scented wattle, sweet acacia, sweet wattle
    tropical American thorny shrub or small tree; fragrant yellow flowers used in making perfumery
    Acacia xanthophloea, fever tree
    African tree supposed to mark healthful regions
    Acacia auriculiformis, black wattle
    Australian tree that yields tanning materials
    Acacia cambegei, gidgee, stinking wattle
    scrubby Australian acacia having extremely foul-smelling blossoms
    Acacia dealbata, mimosa, silver wattle
    evergreen Australasian tree having white or silvery bark and young leaves and yellow flowers
    Acacia pycnantha, golden wattle
    shrubby Australian tree having clusters of fragrant golden yellow flowers; widely cultivated as an ornamental
    type of:
    a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms
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