2. Requiring expiation; criminal; atrociously bad. "Piacular pollution." De Quincey.
PIACULARITY
Pi*ac`u*lar"i*ty, n.
Defn: The quality or state of being piacular; criminality; wickedness. De Quincey.
PIACULOUS
Pi*ac"u*lous, a.
Defn: Same as Piacular.
PIAL
Pi"al, a. (Anat.)
Defn: Pertaining to the pia mater.
PIA MATER Pi"a ma"ter. Etym: [NL., fr. L. pia (fem. of pius tender, kind) + mater mother.] (Anat.)
Defn: The delicate and highly vascular membrane immediately investing the brain and spinal cord.
PIAN Pian, n. Etym: [Pg. pian, epian, or. Sp. pian; from the native name in South America: cf. F. pian.] (Med.)