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1. Subsisting by seizing prey; predatory.
2. Adapted for the seizing of prey.
3. Of, relating to, or characteristic of birds of prey.


(ræpˈtɔːrɪəl) or


1. (Zoology) (of the feet of birds) adapted for seizing prey
2. (Zoology) (esp of birds) feeding on prey; predatory
3. (Zoology) of or relating to birds of prey
[C19: from Latin raptor a robber, from rapere to snatch]


(ræpˈtɔr i əl, -ˈtoʊr-)

1. preying upon other animals; predatory.
2. adapted for seizing prey, as an eagle's claws.
3. of or pertaining to a bird of prey.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.raptorial - relating to or characteristic of birds of prey; "raptorial claws and bill for seizing prey"
2.raptorial - living by preying on other animals especially by catching living preyraptorial - living by preying on other animals especially by catching living prey; "a predatory bird"; "the rapacious wolf"; "raptorial birds"; "ravening wolves"; "a vulturine taste for offal"
aggressive - having or showing determination and energetic pursuit of your ends; "an aggressive businessman"; "an aggressive basketball player"; "he was aggressive and imperious; positive in his convictions"; "aggressive drivers"
References in periodicals archive ?
As many as 150 different Caryospora species may exist in raptorial birds worldwide.
Chlorinated hydrocarbons and eggshell changes in raptorial and fish-eating birds.
Finally, penaeid postlarvae become benthic and switch to raptorial feeding of larger prey.
Mortality and morbidity associated with gunshot in raptorial birds from the province of Quebec: 1986 to 2007.
Accordingly, woody plants are important for a diversity of bird species as they provide cover, and observation posts for raptorial birds (Ffolliott et al.
In about a third of 34 disputes over lab territory, a Neogonodactylus bredini mantis shrimp's first move was to slam a raptorial club into a rival, Patrick Green of Duke University reported June 11.
As the provincial disease specialist for Ontario, his research interests extended to other cervids, large predators, furbearers, upland game and raptorial birds.
They have powerful raptorial forelimbs used for grasping prey during capture and while feeding.
The figures depict well the raptorial forelegs, flat body and that the respiratory tube is of two longitudinal halves.
It would be suggestive to identify the two Achillini's knives with the two later owned by Antonio Giganti, (12) who described them as "a stone sacrificial knife with a wooden handle, one foot long" and a "stone razor" (Giganti 1984: 211, 233); (13) their description closely matches Ulisses Aldrovandi's two knives, a ceremonial one with a handle in the form of a raptorial bird and a smaller one (seemingly with an obsidian prismatic blade, which actually looks like a barber's razor), depicted in his Musaeum Metallicum (Aldrovandi 1648: 156-157).
A hospital CEO must contend with the intersecting machinations of a medical staff, the protean demands of regulatory agencies, the incursions of raptorial competitors, the remonstrations of irate patients, the questionable sales tactics of mendacious vendors, and the peremptory demands of a fickle and entitled public.
Their extraordinary, raptorial claws suggest that they are fierce, specialized predators, but their prey and attack behaviour remain unknown.