Biology-Online.org   
car·ni·vore (kär'n?-vôr', -vor') n.
A flesh-eating animal.
Any of various predatory, flesh-eating mammals of the order Carnivora, including the dogs, cats, bears, weasels, hyenas, and raccoons.
One who victimizes or injures others; a predator.
An insectivorous plant.

Merriam-Webster Dictionary
Main Entry: car·ni·vore
Pronunciation: 'kär-n&-"vor
Function: noun
Etymology: ultimately from Latin carnivorus
1 : any of an order (Carnivora) of typically flesh-eating mammals that includes dogs, foxes, bears, raccoons, and cats; broadly : a carnivorous animal
2 : a carnivorous plant

Wikipedia
Carnivore
This tiger's sharp teeth and strong jaws are the classical physical traits expected from carnivorous mammalian predatorsA carnivore (IPA: ['k?(r)niv?(r)]), meaning 'meat eater' (Latin carne meaning 'flesh' and vorare meaning 'to devour'), is an animal with a diet consisting mainly of meat, whether it comes from animals living or dead (scavenging). Some animals are considered carnivores even if their diets contain very little meat (e.g., predatory arthropods such as spiders or mantids that may rarely consume small vertebrate prey). Animals that subsist on a diet consisting only of meat are referred to as obligate carnivores.

The word also refers to the mammals of the Order Carnivora, many (but not all) of which fit the first definition. Bears are an example of members of Carnivora that are not true carnivores. Carnivores that eat insects primarily or exclusively are called insectivores, while those that eat fish primarily or exclusively are called piscivores.

There are also several genera and a few hundred species of carnivorous plants, though these are primarily insectivorous.

The theropod dinosaurs such as Tyrannosaurus rex were mostly obligate carnivores, while sauropod and ornithischian dinosaurs were mostly herbivorous.

Characteristics commonly 'associated' with carnivores include organs for capturing and disarticulating prey (teeth and claws serve these functions in many vertebrates) and status as a hunter. In truth, these assumptions may be misleading, as some carnivores do not hunt and are scavengers (though most hunting carnivores will scavenge when the opportunity exists). Thus they do not have the characteristics associated with hunting carnivores.