Curl or CURL may refer to: Science and technology Curl (mathematics), a vector operator that shows a vector field's rate of rotation Curl (programming language), an object-oriented programming language designed for interactive Web content cURL, a program and application library for transferring data with URLs Antonov An-26, an aircraft, NATO reporting name CURL Sports and weight training Curl (association football), is spin on the ball, which will make it swerve when kicked Curl, in the sport of curling, the curved path a stone makes on the ice or the act of playing; see Glossary of curling Biceps curl, a weight training exercises Leg curl, a weight training exercises Wrist curl, a weight training exercises Other uses Curl (Japanese snack), a brand of corn puffs Curl or ringlet, a lock of hair that grows in a curved, rather than straight, direction Consortium of University Research Libraries, an association of UK academic and research libraries Executive curl, the ring above a naval officer's gold lace or braid rank insignia People with the surname Kamren Curl (born 1999), American football player Martina Gangle Curl (1906–1994), American artist and activist Robert Curl (1933–2022), Nobel Laureate and emeritus professor of chemistry at Rice University Rod Curl (born 1943), American professional golfer Phil Curls (1942–2007), American politician See also Curling (disambiguation) Overlap (disambiguation) Spiral