( Leukocytes ( ( is ( ( another name ) ( for ( white ( blood cells ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Leukocytes)) (VP (VBZ is) (NP (NP (DT another) (NN name)) (PP (IN for) (NP (JJ white) (NN blood) (NNS cells))))) (. .)))
Leukocytes is another name for white blood cells.
(ROOT (S (NP (JJ Leukocytes) (NN blood) (NNS cells)) (VP (VBP are) (ADJP (JJ white))) (. .)))