( ( In science ) ( , ( diffusion ( ( ( refers ( to ( ( the movement ) ( of ( molecules ( from ( an area ) ) ) ) ) ) ) ( where ( they ( are ( highly ( ( concentrated ( into ( an area ) ) ) ( where ( they ( are ( less concentrated ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NN science))) (, ,) (NP (NN diffusion)) (VP (VBZ refers) (PP (TO to) (NP (NP (DT the) (NN movement)) (PP (IN of) (NP (NP (NNS molecules)) (PP (IN from) (NP (DT an) (NN area))))))) (SBAR (WHADVP (WRB where)) (S (NP (PRP they)) (VP (VBP are) (ADJP (RB highly) (VBN concentrated) (PP (IN into) (NP (DT an) (NN area))) (SBAR (WHADVP (WRB where)) (S (NP (PRP they)) (VP (VBP are) (ADJP (RBR less) (VBN concentrated)))))))))) (. .)))
In science, diffusion refers to the movement of molecules from an area where they are highly concentrated into an area where they are less concentrated.
(ROOT (S (NP (NNP Diffusion)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT the) (NN movement)) (PP (IN of) (NP (NP (NNS molecules)) (PP (IN from) (NP (NP (DT an) (NN area)) (PP (IN of) (NP (NP (JJ high) (NN concentration)) (PP (TO to) (NP (NP (DT an) (NN area)) (PP (IN of) (NP (JJ low) (NN concentration))))))))))))))) (. .)))