The word "cathammal" is not a commonly used term, and may not be found in standard dictionaries. However, its spelling can be broken down using the International Phonetic Alphabet (IPA) phonetic transcription. "Cath-" is pronounced as /kæθ/, with the "th" sound being produced by placing the tip of the tongue between the teeth. "Am-" is pronounced as /æm/, and "-mal" is pronounced as /mæl/. Therefore, "cathammal" would be pronounced as /kæθæmæl/.
I apologize, but the term "cathammal" does not have an established dictionary definition as it seems to be a largely obscure or non-standard word. It is possible that this term is a neologism or slang term specific to a particular community or niche field. Without further information, it is difficult to provide an accurate definition. If you can provide any additional context or details about the term "cathammal," I would be more than happy to assist you.