What is the meaning of Cactus?

Any member of the family Cactaceae, a family of flowering New World succulent plants suited to a hot, semi-desert climate.

Any succulent plant with a thick fleshy stem bearing spines but no leaves, such as euphorbs.

Non-functional, broken, exhausted, dead.

cactus (member of the Cactaceae)

cactus (member of the Cactaceae)

[[]]cactus, plant of the family Cactaceae

cactus

cactus

the cardoon, Cynara cardunculus

cactus

Alternative form of cacto

Source: wiktionary.org