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The Collaborative International Dictionary

Cactus \Cac"tus\, n.; pl. E. Cactuses, Cacti (-t[=i]). [L., a kind of cactus, Gr. ??????.] (Bot.) Any plant of the order Cactac[ae], as the prickly pear and the night-blooming cereus. See Cereus. They usually have leafless stems and branches, often beset with clustered thorns, and are mostly natives of the warmer parts of America.

Cactus wren (Zo["o]l.), an American wren of the genus Campylorhynchus, of several species.


n. (plural of cactus English)


See cactus

  1. n. any spiny succulent plant of the family Cactaceae native chiefly to arid regions of the New World

  2. [also: cacti (pl)]

Cacti (software)

Cacti is an open-source, web-based network monitoring and graphing tool designed as a front-end application for the open-source, industry-standard data logging tool RRDtool. Cacti allows a user to poll services at predetermined intervals and graph the resulting data. It is generally used to graph time-series data of metrics such as CPU load and network bandwidth utilization. A common usage is to monitor network traffic by polling a network switch or router interface via Simple Network Management Protocol (SNMP).

The front end can handle multiple users, each with their own graph sets, so it is sometimes used by web hosting providers (especially dedicated server, virtual private server, and collocation providers) to display bandwidth statistics for their customers. It can be used to configure the data collection itself, allowing certain setups to be monitored without any manual configuration of RRDtool. Cacti can be extended to monitor any source via shell scripts and executables.

Cacti can use one of two back ends: "cmd.php", a PHP script suitable for smaller installations, or "Spine" (formerly Cactid), a C-based poller which can scale to thousands of hosts.

Usage examples of "cacti".

Brought up in 1950s in Tyneside, he read extensively, daydreamed, and grew cacti because they seemed like the vegetation of an alien planet.

Amid scruffy spidery shrubs, cacti with fuzzy yellow halos branched upwards like corals from some destitute sea-bed.

At least on this road to somewhere or nowhere he needn’t fear hitting rocks or dagger-trees or cacti like corals abristle with spikes.

In a nearby dried-up watercourse there were barrel cacti, whose juice was drinkable.

But the area of ground between himself and the fruit-bearing cacti now communicated an air of menace.

It ambled on slowly, and paused under the cacti to poke its reptilian face into the empty shell of a dung beetle.

It seemed to him that the cacti and the shrubs were aware of his presence -- not sharply and consciously, but warmly and dimly, as if from the depths of a pleasant sleep.

A few hedges, made of cacti and agave, mark out where some wheat or Indian corn has been planted.

This was evident from the dress and complexion of the men -- from the increased size of the ombu-trees -- the number of new cacti and other plants -- and especially from the birds.

The soil in parts was absolutely bare, in others covered by numberless dwarf cacti, armed with formidable spines, and called by the inhabitants "little lions.

On the coast-mountains, at the height of about 2000 feet where during this season the clouds generally hang, a very few cacti were growing in the clefts of rock.

These huge reptiles, surrounded by the black lava, the leafless shrubs, and large cacti, seemed to my fancy like some antediluvian animals.

The spaces between the cacti and the fallen black chunks of kva were crowded with brittle bush.

There were rocks and much cacti, thickets of mesquite, broken ledges upthrust from below.

Then, when even the blotched and sickly cacti became more sparse and stunted, and rills of ashen sand crept in among them, I began to suspect how great was the hatred my heresy had aroused in the priests of Ong and to guess the ultimate malignancy of their vengeance.