A thickened dorsal plate on each segment of the body of an arthropod.
- ‘However the most important feature is undoubtedly the dorsal morphology of the tergum 13 with its two dorso-lateral tubercles connected by a transverse, elevated, rounded ridge.’
- ‘After cutting the pleural membrane between the sterna and terga, it was possible to remove the entire genital apparatus with a fine-tipped forceps.’
Early 19th century: from Latin, literally ‘back’.
We take a look at several popular, though confusing, punctuation marks.