A kingdom or large grouping that is either synonymous with the Protista or equivalent to the Protista together with their multicellular descendants.
- ‘He says there are twenty or more kingdoms hidden in the Protoctista gloss.’
- ‘This section covers almost exclusively single-celled forms, i.e. the Protista or Protoctista.’
Modern Latin (plural), based on Greek prōtos ‘first’.
We take a look at several popular, though confusing, punctuation marks.