freezer

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A thermally insulated compartment, cabinet, or room in which a subfreezing temperature is maintained for the rapid freezing and storing of perishable items, especially food.

from The Century Dictionary.

• noun One who or that which freezes or chills; a refrigerator; especially, a contrivance, as a vessel containing a freezing-mixture, for producing a freezing temperature in substances exposed to its influence, as cream.
• noun A sheep whose mutton is intended to be frozen and exported.

from the GNU version of the Collaborative International Dictionary of English.

• noun One who, or that which, cools or freezes, as a refrigerator, or the tub and can used in the process of freezing ice cream.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun an appliance or room used to store food or other perishable items at temperatures below 0° Celsius (32° Fahrenheit).
• noun the section of a refrigerator used to store food or other perishable items at a temperature below 0° Celsius (32° Fahrenheit).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun electric refrigerator (trade name Deepfreeze) in which food is frozen and stored for long periods of time