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.
Since the franchise's inception, the Vikings have completed 54 seasons of play in the NFL. The team won one NFL Championship in 1969, and was the last team crowned NFL champions before the AFLâNFL merger in 1970. The franchise has been conference champions three times since the merger, but has never won the Super Bowl.