Defn: Those Batrachia which retain their gills through life, as the menobranchus.

PERENNIBRANCHIATE
Per*en`ni*bran"chi*ate, a. Etym: [See Perennial, and Branchiate.]

1. (Anat.)

Defn: Having branchæ, or gills, through life; — said especially of certain Amphibia, like the menobranchus. Opposed to caducibranchiate.

2. (Zoöl.)

Defn: Belonging to the Perennibranchiata.

PERENNITY
Per*en"ni*ty, n. Etym: [L. perennitas.]

Defn: The quality of being perennial. [R.] Derham.

PERERRATION Per`er*ra"tion, n. Etym: [L. pererrare, pererratum, to wander through.]

Defn: A wandering, or rambling, through various places. [R.] Howell.