(philosophy) the philosophical theory that formal (logical or mathematical) statements have no meaning but that its symbols (regarded as physical entities) exhibit a form that has useful applications(noun.cognition)
source: wordnet30
the practice of scrupulous adherence to prescribed or external forms(noun.act)
source: wordnet30
The practice or the doctrine of strict adherence to, or dependence on, external forms, esp. in matters of religion.(noun)