Leaf. A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants.eaf (noun). something which is like a leaf in being wide and thin and having a flat surface, or in being attached to a larger body by one edge or end; as : (a) A part of a book or folded sheet containing two pages upon its opposite sides.
Production on Vikings season 4 is set to begin this spring in Ireland (presumably for an early 2016 premiere), while its third season will wrap up in about a month, on April 23rd.
The 2 nd part of Vikings Season 4 had released in November 2016 and the 5 th season will be premiered in 29 November 2017. Performance of Vikings TV Series. Vikings is one of the most watchable TV series of History. This can be judged by its viewership, which is more than 2.2 million viewers from its first seasons.