It's possible that "porcelator" is not in the dictionary because it may be a rare or made-up word that hasn't gained widespread usage. Dictionary entries are typically based on the frequency of a word's use and its importance in the language.
I have no idea. However, it is in the Wikipedia free on-line encyclopedia which states, A porcelator is a little hole in the sink that drains out the water before they overflow. Good question!! I learned something new today!!
Answer Perhaps it's a coined word of limited use used by say, just one company, and which hasn't come into general use outside a limited area.
A Porecelator is the American equivalent of an overflow outlet on a bathtub or sink.
You probably missed a couple of DI pages in the dictionary. Or you have a dictionary that doesn't have the word dictionary in there because mostly the word dictionary will be in a dictionary.
A dictionary on a particular subject such as a Science Dictionary, or a Military Dictionary.
Some British dictionaries are: The Oxford English Dictionary The Chambers Dictionary The Collins Dictionary Cassell's English Dictionary
What information does the dictionary provides? What are the parts of the dictionary?
Abridged Dictionary
Some of the categories of Information provided in The Free Dictionary are Dictionary/Thesaurus, Medical Dictionary, Legal Dictionary and Financial Dictionary. There are also the Acronyms, Idioms and Encyclopedia and Wikipedia Encyclopedia Categories in The Free Dictionary.
There are several different dictionaries depending on where you are playing. The SOWPODS is the largest dictionary, combined of the official scrabble dictionary and the british scrabble dictionary. The official dictionary for tournament play in the US is the TWL dictionary.
Pocket dictionary, Concise dictionary, Desk dictionary,
"A lot" is not in the dictionary, though each word is in the dictionary separately.
The word pickle is in the dictionary online and in the book dictionary
~dictionary entries are the things you put in a dictionary (the words). =)