American dictionaries?

I appreciate the access that the library offers to the OED. But is it true that we don't have access to Merriam Webster's Unabridged? The OED is a wonderful resource, but it can't supply spelling and meaning for American English usage. If I'm just looking in the wrong place, please let me know.

We don't have access to the M-W unabridged, but do have several other online dictionaries, including Merriam Webster's Collegiate, American Heritage Dictionary, and the New Oxford American Dictionary.

All of the above will tell you that a "chip" is first a "small piece of food" and only then in certain parts a "French fry."