( ( Ion ( ( An ( ( atom or ) group ) ) ( of ( atoms ( that ( ( ( carries ( ( a ( ( ( positive or ) negative ) ( electric charge ) ) ) ( as ( ( a result ) ( of ( having lost ) ) ) ) ) ) or ) ( gained ( ( ( one or ) more ) electrons ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Ion) (NP (NP (DT An) (NN atom) (CC or) (NN group)) (PP (IN of) (NP (NP (NNS atoms)) (SBAR (WHNP (WDT that)) (S (VP (VP (VBZ carries) (NP (NP (DT a) (ADJP (JJ positive) (CC or) (JJ negative)) (JJ electric) (NN charge)) (PP (IN as) (NP (NP (DT a) (NN result)) (PP (IN of) (S (VP (VBG having) (VP (VBN lost))))))))) (CC or) (VP (VBD gained) (NP (QP (CD one) (CC or) (JJR more)) (NNS electrons)))))))))) (. .)))
Ion An atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons.
(ROOT (S (NP (NP (NNS Atoms)) (SBAR (WHNP (WDT that)) (S (VP (VBP have) (VP (VP (VBN gained) (NP (NNS electrons))) (CC and) (VP (VBN become) (S (VP (ADVP (RB negatively)) (VBN charged))))))))) (VP (VBP are) (VP (VBN called) (NP (JJ negative) (NNS ions)))) (. .)))