‖ phreˈniculaPath. [mod.L., f. as phrenic a. (n.) + dim. suffix: see -cule.] 1799M. Underwood Dis. Children (ed. 4) I. 282 What he [i.e. Dr. Paterson] calls a phrenicula, or diminutive species of phrenitis.1893Syd. Soc.Lex., Phrenicula, term used by Rust for Brain-fever.