( ( Wavelength ( ( The distance ) ( between ( ( two ( successive parts ) ) ( of ( a wave ) ) ) ) ) ) . )
(ROOT (S (VP (VB Wavelength) (NP (NP (DT The) (NN distance)) (PP (IN between) (NP (NP (CD two) (JJ successive) (NNS parts)) (PP (IN of) (NP (DT a) (NN wave))))))) (. .)))
Wavelength The distance between two successive parts of a wave.
(ROOT (S (NP (NNP Wavelength)) (VP (VBZ is) (NP (NP (DT the) (NN distance)) (PP (IN between) (NP (NP (CD two) (JJ corresponding) (NNS points)) (PP (IN of) (NP (NP (JJ adjacent) (NNS waves)) (VP (VBN called)))))))) (. .)))
Wavelength is the distance between two corresponding points of adjacent waves called.