A process in which a differentiated cell reverts to an earlier developmental stage.
A close and mutually beneficial association of organisms of different species.
The soft, curly hair that forms the fleece of sheep, lamas and other animals and which is used to produce clothing.
A vehicle that may be hired for single journeys by members of the public and driven by a taxi driver.
An agglomeration of ice crystals falling from the sky.
A dialect of the Limousin language.
The world's largest body of water, to the east of Asia and Australasia and to the west of the Americas.
One who absents himself from his country, office, post, or duty.
A dark-coloured board for writing on in chalk used especially in schools.
A Bantu language spoken by the Kikuyu people in the area between Nyeri and Nairobi of Kenya.