tablet

noun

• 1a flat slab of stone, clay, or wood, used especially for an inscription.
• Architectureanother term for table (sense 3 of the noun).

• 2a small disk or cylinder of a compressed solid substance, typically a measured amount of a medicine or drug; a pill.
• British a small flat piece of soap.

• 3a writing pad.
• (also tablet computer or tablet PC) ( trademark in the UK) a computer that accepts input directly onto an LCD screen rather than via a keyboard or mouse.