( Wavelength ( ( is ( ( the distance ) ( between ( ( ( two peaks ) ( -LRB- ( ( high points ) -RRB- ) ) ) ( of ( a wave ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Wavelength)) (VP (VBZ is) (NP (NP (DT the) (NN distance)) (PP (IN between) (NP (NP (NP (CD two) (NNS peaks)) (PRN (-LRB- -LRB-) (NP (JJ high) (NNS points)) (-RRB- -RRB-))) (PP (IN of) (NP (DT a) (NN wave))))))) (. .)))
Wavelength is the distance between two peaks(high points) 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.