This is a series of posts on interesting and unusual words and phrases.
The first set of words are adjectives that describe a shape and are often used in botany, mineralogy, and describing artistic forms.
The word for today is clypeate or clypeiform: shield or buckler-shape, from the Latin clypeus.
Clipeus:
Pliny the Elder also describes the custom of having a bust-portrait of an ancestor painted on a clipeus, and having it hung in a temple or other public place. From this round bas-reliefs in a medallion on sarcophagi and in other forms are known as imago clipeata or “clipeus portraits”,[2] a term usually restricted to Roman art.

Clipeus of Iupiter-Ammon, conserved at the Museu Nacional Arqueològic de Tarragona








