Definition of "Raku"

Raku¹

proper noun
1. (ceramics) A style of Japanese pottery, considered the traditional style for the pottery used in the Japanese tea ceremony; (especially capitalised) such pottery made by the Raku family.
  Quotations
  Raku bowls are of two types. The red Raku is made from a reddish earthenware clay and is glazed with a lead glaze.
  1968, Daniel Rhodes, Kilns: Design, Construction and Operation‎, page 180
  Koetsu learned the technique of Raku pottery from the Raku potter Kichizaemon Jokei (1561-1635) and his son Nonko (aka Donyu; 1599-1656), who also had the name Kichibei.
  1989, Chanoyu Quarterly, number 58, page 38
  As a technique, raku seems to encourage experimentation.
  2010, John Mathieson, Techniques Using Slips, Chapter 6: Slips and Raku, page 53
2. The English transliteration of a Japanese surname; specifically, that of the family traditionally licensed to manufacture the pottery.

Raku²

proper noun
1. (computer languages) A programming language derived from Perl.
  Quotations
  Many programming paradigms have influenced Raku. It has started its life under the name “Perl 6” but has been renamed in 2019 to break the illusion that it is just another version of Perl.
  2020, Moritz Lenz, Raku Fundamentals, 2nd edition, Apress, page 1