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 (prē′ăd-ăp-tā′shən, -əp-)
1. A characteristic of an ancestral species or population that serves an adaptive though different function in a descendant species or population.
2. The ability of a characteristic to assume a new biological function without evolutionary modification.


(Biology) biology the possession by a species or other group of characteristics that may favour survival in a changed environment, such as the limblike fins of crossopterygian fishes, which are preadaptation to terrestrial life


(ˌpri æd əpˈteɪ ʃən)

Biol. a structure or property that develops in an ancestral stock and becomes useful in a descendant in a changed environment.
pre`a•dapt′ (-əˈdæpt) v.i.
pre`a•dap′tive, adj.
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References in periodicals archive ?
Biocontrol theory suggests that climate matching is important for improving the likelihood that a natural enemy will establish in the intended introduced range; preadaptation to the prevailing climate eases at least one establishment barrier (Van Driesche et al.
MAX]) at each temperature was determined by selecting the mean relative risk from the first part of the 20th century, corresponding to the preadaptation part of the sigmoid curve.
A major issue is whether the capacity of a virus to spread in human populations arises as a result of adaptation (evolution of transmissibility that occurs during human infection) or preadaptation (genetic variation within nonhuman reservoirs that predisposes a virus not only to infect humans but also transmit between humans, noting that RNA viruses often show high levels of genetic variation such that they are sometimes described as quasi-species [29]).
Adaptation and Preadaptation of Salmonella enterica to Bile.
La preadaptation de Lucien Cuenot (1866-1951) puis, ensuite, l'exaptation (sans le <<ad>> finaliste) proposee par Stephen Jay Gould et Elisabeth Vrba en 1982, rendent compte de l'idee generale d'un <<changement majeur des fonctions de structures preexistantes, dans le contexte de nouvelles conditions de milieu >> (Barbara, 2008; Ricqles, 2015).
With the rapid development of medical technology, there have been several methods to decrease the risk of I/R injury, such as reducing the operation time, improving the operation method, preadaptation to ischemia, and increasing blood supply for brain; however, there is no obvious change of biochemical factors inducing I/R injury [32].
2012), which may specifically affect gyre plankton communities since gyre species may have less preadaptation to fluctuations in ocean pH compared to coastal species (Beaufort et al.
326) It is also possible that current and former patients who are adapting or have adapted to their conditions may neglect the preadaptation period during which their condition was causing substantial welfare losses.
Ricciardi and Mottiar (2006) indicated that Darwin's naturalized hypothesis has rarely been tested statistically and results thus far have been equivocal; some studies support this hypothesis as the one of Rejmaneck (1996), while others reject it and, in some cases support the preadaptation hypothesis (Duncan and Williams, 2002).
rosea acts as stressor which did not provide preadaptation to next oxidative challenges.
From the axiomatic point of view, mathematics appears thus as a storehouse of abstract forms--the mathematical structures; and it so happens--without our knowing how--that certain aspects of empirical reality fit themselves into these forms, as if through a kind of preadaptation.
Evolutionary response of predators to dangerous prey: Preadaptation and the evolution of tetrodotoxin resistance in garter snakes.