Ideal may refer to: Philosophy Ideal (ethics), values that one actively pursues as goals Platonic ideal, a philosophical idea of trueness of form, associated with Plato Mathematics Ideal (ring theory), special subsets of a ring considered in abstract algebra Ideal, special subsets of a semigroup Ideal (order theory), special kind of lower sets of an order Ideal (set theory), a collection of sets regarded as "small" or "negligible" Ideal (Lie algebra), a particular subset in a Lie algebra Ideal point, a boundary point in hyperbolic geometry Ideal triangle, a triangle in hyperbolic geometry whose vertices are ideal points Science Ideal chain, in science, the simplest model describing a polymer Ideal gas law, in physics, governing the pressure of an ideal gas Ideal transformer, an electrical transformer having zero resistance and perfect magnetic threading Ideal final result, in TRIZ methodology, the best possible solution Thought experiment, sometimes called an ideal experiment Ideal type, a social science term Ideal solution, a solution with thermodynamic properties analogous to those of a mixture of ideal gases Entertainment Ideal (group), a late-1990s/2000s American R&B group Ideal (German band), an early-1980s German rock group Ideal (album), a 1999 album by the R&B group Ideal An Ideal, a 2016 album by Li Ronghao Ideal (novel), a 1934 novel by Ayn Rand, published in 2015 Ideal (play), a 1936 play by Ayn Rand, adapted from the novel, published in 1989 Ideal (TV series), a British situation comedy Ideal Film Company, a British film studio of the Silent Era Ideal Ice Cream, an ice cream company Ideal Toy Company, a defunct toy company Places Ideal, Georgia Ideal, Illinois Ideal, South Dakota Ideal Mini School Miscellaneous Changhe Ideal, a city car produced by a joint-venture of Changhe and Suzuki Ideal 18, a Canadian sailboat design IDEAL Scholars Fund, an American scholarship program for underrepresented students Ideal (newspaper), a Spanish-language newspaper iDEAL, an online payment method in the Netherlands Ideal Industries, an American manufacturer of electrical connectors and tools IDEAL framework (Idea, Development, Exploration, Assessment, Long-term study), a framework for describing the stages of innovation in surgery IDEAL (Interactive Development Environment for an Application Lifecycle), a development language above COBOL for DATACOM/DB See also Idealism (disambiguation) Idea Idol (disambiguation) Idle (disambiguation) Idyl (disambiguation)