v. t. [ OE. at + renne to run. ] To outrun. [ Obs. ] Chaucer. [ 1913 Webster ]

n. The condition of being barren; sterility; unproductiveness. [ 1913 Webster ]

A total barrenness of invention. Dryden. [ 1913 Webster ]

n. [ OF. brenage; cf. LL. brennagium, brenagium. See Bran. ] (Old Eng. Law) A tribute which tenants paid to their lord, in lieu of bran, which they were obliged to furnish for his hounds. [ 1913 Webster ]

{ } v. t. & i. [ imp. & p. p. Brent (&unr_;); p. pr. & vb. n. Brenning. ] [ See Burn. ] To burn. [ Obs. ] Chaucer. [ 1913 Webster ]

Consuming fire brent his shearing house or stall. W. Browne. [ 1913 Webster ]

adv. Burningly; ardently. [ Obs. ] [ 1913 Webster ]

v. i. To survive from season to season, of plants. [ WordNet 1.5 ]

a. [ L. perennis that lasts the whole year through; per through + annus year. See Per-, and Annual. ] 1. Lasting or continuing through the year; as, perennial fountains. [ 1913 Webster ]

2. Continuing without cessation or intermission; perpetual; unceasing; never failing. [ 1913 Webster ]

The perennial existence of bodies corporate. Burke. [ 1913 Webster ]

3. (Bot.) Continuing more than two years; as, a perennial steam, or root, or plant. [ 1913 Webster ]

Syn. -- Perpetual; unceasing; never failing; enduring; continual; permanent; uninterrupted. [ 1913 Webster ]

n. (Bot.) A perennial plant; a plant which lives or continues more than two years, whether it retains its leaves in winter or not. [ 1913 Webster ]

adv. In a perennial manner. [ 1913 Webster ]

‖n. pl. [ NL. See Perennial, and Branchia. ] (Zool.) Those Batrachia which retain their gills through life, as the menobranchus. [ 1913 Webster ]

a. [ See Perennial, and Branchiate. ] 1. (Anat.) Having branchæ, or gills, through life; -- said especially of certain Amphibia, like the menobranchus. Opposed to caducibranchiate. [ 1913 Webster ]

2. (Zool.) Belonging to the Perennibranchiata. [ 1913 Webster ]

n. [ L. perennitas. ] The quality of being perennial. [ R. ] Derham. [ 1913 Webster ]

a. [ L. quadriennium a space of four years; quattuor four + annus year; cf. L. quadriennis. See Quadrate, and Annual. ] 1. Comprising four years; as, a quadrennial period. [ 1913 Webster ]

2. Occurring once in four years, or at the end of every four years; as, quadrennial games. [ 1913 Webster ]

adv. Once in four years. [ 1913 Webster ]

‖n. [ NL. See Quadrennial. ] A space or period of four years. [ 1913 Webster ]

v. t. To plunder; -- only in the phrase “to rape and renne.” See under Rap, v. t., to snatch. [ Obs. ] Chaucer. [ 1913 Webster ]

v. i. To run. [ Obs. ] Chaucer. [ 1913 Webster ]

n. A runner. [ Obs. ] Chaucer. [ 1913 Webster ]

n. [ F. rainette, reinette, perhaps fr. raine a tree frog, L. rana, because it is spotted like this kind of frog. Cf. Ranunculus. ] (Bot.) A name of many different kinds of apples. Cf. Reinette. Mortimer. [ 1913 Webster ]

n. [ AS. rinnan, rennan, to run, cf. gerinnan to curdle, coagulate. √11. See Run, v. ] 1. The inner, or mucous, membrane of the fourth stomach of the calf, or other young ruminant. [ 1913 Webster ]

2. an infusion or preparation of the calf stomach lining, used for coagulating milk. The active principle in this coagulating action is the enzyme rennin. [ Written also runnet. ] [ 1913 Webster +PJC ]

Cheese rennet. (Bot.) See under Cheese. --
Rennet ferment (Physiol. Chem.), the enzyme rennin, present in rennet and in variable quantity in the gastric juice of most animals, which has the power of curdling milk. The enzyme presumably acts by changing the casein of milk from a soluble to an insoluble form. --
Rennet stomach (Anat.), the fourth stomach, or abomasum, of ruminants. [ 1913 Webster +PJC ]

a. Provided or treated with rennet. [ R. ] “Pressed milk renneted.” Chapman. [ 1913 Webster ]

n. (Bot.) Same as 1st Rennet. [ 1913 Webster ]

n. (Biochem.) A milk-clotting enzyme obtained from the true stomach (abomasum) of a suckling calf. Mol. wt. about 31, 000. Also called chymosin, rennase, and abomasal enzyme. [ Merck Man. 11 ] [ 1913 Webster ]

n. See 2d Rennet. [ Obs. ] [ 1913 Webster ]

Asses' milk is holden for to be thickest, and therefore they use it instead of renning, to turn milk. Holland. [ 1913 Webster ]

n. Corrupt form of Treenail. [ Webster 1913 Suppl. ]