an·iso·phyl·lous \|aˌnīsə|filəs, a|n-\adjective Etymology: French anisophylle, from anis- (I) + -phylle -phyllous 1.: having leaves of two or more shapes and sizes < some conifers and many aquatic plants are anisophyllous > 2.: having the leaves of a pair different in shape and size — compare isophyllous • an·iso·phyl·ly\(ˈ)aˈnīsəˌfilē\noun-es