1. having the outward form or appearance of something else; assuming a false or deceptive shape or character
Usage: formal; often used in mineralogy and geology to describe minerals that have taken on the form of another mineral
2. (mineralogy) of or relating to a pseudomorph; formed by the alteration or replacement of one mineral by another while retaining the original crystal form
Usage: technical; mineralogy

Examples

• The pseudomorphous crystal retained the shape of the original mineral despite its chemical transformation.
• Geologists identified the pseudomorphous formation as evidence of mineral alteration over time.
• The artifact had a pseudomorphous appearance, mimicking the style of an earlier period.
• Pseudomorphous minerals are valuable to scientists studying geological history.
• The sculpture was pseudomorphous in design, imitating the form of natural stone formations.