Amorphous form is a term used to describe a shape or structure that does not have a definite form or structure. It can be described as having no fixed shape or size. The two crossword solutions for this term are 'BLOB' and 'GLOB', both of which are four letters long. BLOB is defined as a soft, shapeless mass, while GLOB is defined as a roundish mass or lump. Both words are used to describe an amorphous form.