Defn: The act or state of passing the whole night; a remaining all night. "Pernoctation in prayer." Jer. Taylor.

PERNOR
Per"nor, n. Etym: [See Pern, v.] (Law)

Defn: One who receives the profits, as of an estate.

PERNOT FURNACE Per"not fur"nace. Etym: [So called from Charles Pernot, its inventor.]

Defn: A reverberatory furnace with a circular revolving hearth, — used in making steel.

PERNYI MOTH
Per"ny*i moth". (Zoöl.)

Defn: A silk-producing moth (Attacus Pernyi) which feeds upon the oak. It has been introduced into Europe and America from China.

PEROFSKITE
Per*of"skite, n. Etym: [From von Perovski, of St.Petersburg.] (Min.)

Defn: A titanate of lime occurring in octahedral or cubic crystals.
[Written also Perovskite.]

PEROGUE
Pe*rogue, n.