esca

is likely misspelled.

has no English definition.

As a noun esca

is fleshy growth from an anglerfish's head that acts as a lure.

As an initialism ESCA

is electron spectroscopy for chemical analysis.

As a noun esca is

.

As nouns the difference between esca and escae

is that esca is while escae is .

As nouns the difference between taxonomy and esca

is that taxonomy is the science or the technique used to make a classification while esca is .