-fo-

n. [ OE. fole, AS. fola; akin to OHG. folo, G. fohlen, Goth. fula, Icel. foli, Sw. fåle, Gr. pw^los, L. pullus a young animal. Cf. Filly, Poultry, Pullet. ] (Zoö.) The young of any animal of the Horse family (Equidæ); a colt; a filly. [ 1913 Webster ]

Foal teeth (Zool.), the first set of teeth of a horse. --
In foal,
With foal, being with young; pregnant; -- said of a mare or she ass. [ 1913 Webster ]

v. t. [ imp. & p. p. Foaled p. pr. & vb. n. Foaling. ] To bring forth (a colt); -- said of a mare or a she ass. [ 1913 Webster ]

v. i. To bring forth young, as an animal of the horse kind. [ 1913 Webster ]

n. (Bot.) See Coltsfoot. [ 1913 Webster ]

n. [ OE. fam, fom, AS. fām; akin to OHG. & G. feim. ] The white substance, consisting of an aggregation of bubbles, which is formed on the surface of liquids, or in the mouth of an animal, by violent agitation or fermentation; froth; spume; scum; as, the foam of the sea. [ 1913 Webster ]

Foam cock, in steam boilers, a cock at the water level, to blow off impurities. [ 1913 Webster ]

v. i. [ imp. & p. p. Foamed p. pr. & vb. n. Foaming. ] [ AS. f&aemacr_;man. See Foam, n. ] 1. To gather foam; to froth; as, the billows foam. [ 1913 Webster ]

He foameth, and gnasheth with his teeth. Mark ix. 18. [ 1913 Webster ]

2. To form foam, or become filled with foam; -- said of a steam boiler when the water is unduly agitated and frothy, as because of chemical action. [ 1913 Webster ]

v. t. To cause to foam; as, to foam the goblet; also (with out), to throw out with rage or violence, as foam. “Foaming out their own shame.” Jude 13. [ 1913 Webster ]

adj. Giving off bubbles and developing a head of foam; as, a foaming glass of beer.
Syn. -- bubbling, frothing. [ WordNet 1.5 ]