ˈendəˌstīl noun
Etymology: International Scientific Vocabulary end- + -style
: a pair of parallel longitudinal folds projecting into the pharyngeal cavity and bounding a furrow lined with glandular ciliated cells in lower chordates (as amphioxus and the tunicates) that is believed to be morphologically equivalent to the thyroid of higher forms
• en·do·sty·lic | ̷ ̷ ̷ ̷|stīlik adjective