noun

• Terms relating to animals.
  "Mammals need two genes to make the taste receptor for sugar. Studies in various cats (tigers, cheetahs and domestic cats) showed that one of these genes has mutated and no longer works."
• Terms relating to animals.
  "At twilight in the summer there is never anybody to fear—man, woman, or cat—in the chambers and at that hour the mice come out. They do not eat parchment or foolscap or red tape, but they eat the luncheon crumbs."
• Terms relating to animals.
  "“[…]—Say, do you mind telling me if people around here really eat cats?” He felt a shiver in the pit of his stomach. “Do they eat cat?” said the little old man, profoundly shocked."
• Terms relating to animals.
  "I grabbed it and ran over to the lion from behind, the cat still chewing thoughtfully on Silent's arm."

verb

• (nautical, transitive) To hoist (an anchor) by its ring so that it hangs at the cathead.
  "The anchors were catted at the bows of the yacht […]"
• (nautical, transitive) To flog with a cat-o'-nine-tails.
• (slang, now rare) To vomit.
  "‘He's going to cat, Maxim,’ said the Pussum warningly. The suave young Russian rose and took Halliday by the arm, leading him away."

noun

• (computing) A program and command in Unix that reads one or more files and directs their content to the standard output.

verb

• (computing, transitive) To apply the cat command to (one or more files).
• (computing, slang) To dump large amounts of data on (an unprepared target), usually with no intention of browsing it carefully.