Emily Dickinson Lexicon

TES-TA-CE-OL'O-GY, or TES-TAL'O-GY, n. [L. testacea or testa, and Gr. λογος.]

The science of testaceous venues, or of those soft and simple animals which have a testaceous covering; a branch of vermeology. [Words thus formed of two languages are rather anomalous, and the first for its length is very objectionable.]