Strong's #6182: `ariycah (pronounced ar-ee-saw')
 from an unused root meaning to comminute; meal:--dough.
Brown-Driver-Briggs Hebrew Lexicon:
 
  ‛ărı̂ysâh 
 
 1) dough, meal, coarse meal, kneading trough
 
 1a) meaning dubious
 
  Part of Speech: noun feminine
Relation: from an unused root meaning to comminute
Usage:
This word is used 4 times:
Numbers 15:20: "Ye shall offer up a cake of the first  of your dough for a heave offering: as ye do the heave offering of the threshingfloor, so"
Numbers 15:21: "Of the first  of your dough ye shall give unto the LORD a heave offering in your generations."
Nehemiah 10:37: "And that we should bring the firstfruits  of our dough, and our offerings, and the fruit of all manner of trees, of wine"
Ezekiel 44:30: "the priest's: ye shall also give unto the priest the first  of your dough, that he may cause the blessing to rest in"