A class of echinoderms that comprises the sea cucumbers.
- ‘The class Holothuroidea is composed of these creatures and many members of the group (but not all) resemble the garden variety of cucumber.’
- ‘Ophiuroidea is grouped with Echinoidea and Holothuroidea based on the closed ambicular grooves.’
Modern Latin (plural), based on Greek holothourion (see holothurian).
We take a look at several popular, though confusing, punctuation marks.