HD Wallet Seed, Root Seed
This definition comes from the technical glossary.
HD wallet seed
Not To Be Confused With
- Mnemonic code / mnemonic seed (a binary root seed formatted as words to make it easier for humans to transcribe and possibly remember)
Root seed — Bitcoin.org Developer Guide
BIP32: hierarchical deterministic wallets — Bitcoin Improvement Proposals
BIP39: mnemonic code for generating deterministic keys — Bitcoin Improvement Proposals