1. Barm, or ferment, appearing in the foam, froth, or flower of beer or other liquor in fermentation; any preparation used for raising dough for bread, &c.; spume or foam of water in agitation.

2. Having the nature or action of yeast.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• deast,
• byest,
• yearss,
• yeat,
• byiast,
• eeast,
• tyest,
• yeasr,
• meast,
• yearsd,
• teast,
• yearsi,
• yearst,
• yearsm,
• queast,
• keast,
• easty,
• eaist,
• seast,
• ceast

• yeasty.

The adjective form of the word "yeast" is "yeasty".

The plural of the "yeast" can be the "yeasts".

The singular of the "yeast" can be the "yeast".