what does Australian blacksnake mean?

AUSTRALIAN BLACKSNAKE as NOUN

Meaning
- large semiaquatic snake of Australia
- black above with red belly
Synonym(s)
- Pseudechis porphyriacus (what does Pseudechis porphyriacus mean?)
Hypernyms(s) Australian blacksnake is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
- elapid (what does elapid mean?)
- elapid snake (what does elapid snake mean?)