(intransitive, literally) To grow roots into soil.
Those tulip bulbs have taken root.
(intransitive, figuratively) To become established, to take hold.
The new regulations have yet to take root.
Owing to the connexion of medicine with these seats of learning, it was natural that the study of the structure and functions of the human body and of the animals nearest to man should take root there; the spirit of inquiry which now for the first time became general showed itself in the anatomical schools of the Italian universities of the 16th century, and spread fifty years later to Oxford.
It is a matter of familiar observation that the ends of the shoots of brambles take root when bent down to the ground.
He was a great opponent of university reform and of the Hegelianism which was then beginning to take root in Oxford.
In the long tale of intrigue and warfare between the Goths and the two imperial courts which fills up this whole time, cessions of territory are offered to the Goths, provinces are occupied by them, but as yet they do not take root anywhere; no Western land as yet becomes Gothia.
In France, Carbonarism began to take root about 1820, and was more thoroughly organized than in Italy.