cacti m. 1  genitive singular of. 2  nominative plural of. 3  vocative plural of.
https://en.wiktionary.org/wiki/cacti
The 2,000 species of cacti are known for living in extremely dry climates, such as the American Southwest. Cacti are excellent at conserving water. Their leaves are sharp spines, which have been known to cause great pain to animals interested in eating them. The spines also help the plant gather scarce water. Water vapor in the air condenses on the spines and then drips to the ground, where it is taken up by the roots.
http://www.thefreedictionary.com/cactus
cactus - definition and synonyms. What are red words? 90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent. The thesaurus of synonyms and related words is fully integrated into the dictionary.
http://www.macmillandictionary.com/dictionary/british/cactus
Cacti vs. cactuses. Cacti is the Latin plural of cactus, and some writers use it in English. Cactuses is the English plural. Dictionaries list both, and neither is right or wrong. Also, like many names of plants, the uninflected cactus is sometimes treated as plural. The prevalence of the Latin cacti can be attributed to the influence of Latin on biological nomenclature.
http://grammarist.com/usage/cacti-cactuses/
Many species of cactus have long, sharp spines, like this Opuntia. A cactus (plural: cacti, cactuses, or cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales.
https://en.wikipedia.org/wiki/Cactus
Cacti have a variety of uses: many species are used as ornamental plants, others are grown for fodder or forage, and others for food (particularly their fruit). Cochineal is the product of an insect that lives on some cacti.
https://en.wikipedia.org/wiki/Cactus
Related words. 1  cactus water noun. 2  a plant that grows in deserts and has thick stems and sharp points called spines Synonyms and related words. General types of plant:alpine, annual, bean...
http://www.macmillandictionary.com/dictionary/british/cactus
us ​ /ˈkæk·təs/ plural cacti /ˈkæk·tɑɪ/ cactuses. › any of a type of plant that grows in the desert, having thick stems for storing water and usually spines (= sharp points) (Definition of “cactus” from the Cambridge Academic Content Dictionary © Cambridge University Press) Translations of “cactus”.
http://dictionary.cambridge.org/us/dictionary/english/cactus
The 2,000 species of cacti are known for living in extremely dry climates, such as the American Southwest. Cacti are excellent at conserving water. Their leaves are sharp spines, which have been known to cause great pain to animals interested in eating them. The spines also help the plant gather scarce water. Water vapor in the air condenses on the spines and then drips to the ground, where it is taken up by the roots.
http://www.thefreedictionary.com/cacti
cactuses, cactus. 1. any of numerous succulent plants of the family Cactaceae, of warm, arid regions of the New World, having fleshy, leafless, usually spiny stems, and typically having solitary, showy flowers. Origin of cactus.
http://www.dictionary.com/browse/cacti
define cacti
Cactus is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. Cacti are a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales.