What is the meaning of the word "cactus"?

Definitions:

  1. A plant belonging to the family Cactaceae, characterized by its adaptation to dry climates, spiny exterior, and ability to retain water in its stem. copy to clipboard NOUN
    • During the dry season, the cactus would lose some of its plumpness, conserving water in its stem. copy to clipboard
  2. Refers to a type of succulent plant known for its thick, fleshy stem, which stores water, and its typical spines instead of leaves, most commonly found in deserts and arid regions, especially in the Americas. copy to clipboard NOUN
    • The cactus can survive for months without rain. copy to clipboard

Synonyms: