HTML is also often used to refer to content of the MIME type text/html or even more broadly as a generic term for HTML whether in its XML-descended form (such as XHTML 1.0 and later) or its form descended directly from SGML (such as HTML 4.01 and earlier).
Definition of toxin: Technically, a poison produced by the metabolic activity of a microorganism (such as Clostridium botulinum), an animal (such as snake), or plant (such as nightshade) which, when introduced in a living ...
The language surrounding what toxins are is purposely vague. The Merriam-Webster toxin definition states: Simply put, a toxin is harmful matter. The reason for this ambiguous language is due to the many types of toxins, all with different and potentially detrimental effects.