1. A linguistic or phonetic change that occurs in a sound or word based on its position within a word or utterance
The positional variation of the 'r' sound differs between initial and final positions in English.
A variação posicional do som 'r' difere entre posições iniciais e finais em inglês.
2. In genetics or biology, variation in traits or characteristics based on physical position or location
Positional variation in gene expression can affect phenotypic outcomes.
A variação posicional na expressão gênica pode afetar os resultados fenotípicos.
3. In sports or movement, variation in technique or performance based on body or object positioning
Positional variation in tennis serves depends on the player's stance.
A variação posicional nos saques de tênis depende da postura do jogador.