1. A hydrogen atom in an acid that forms a positive ion when the acid dissociates
   - acidic hydrogen

Type of: hydrogen atom

• subsist
• subsistence
• subsistence farming
• subsistent
• subsister
• subsoil
• subsolar
• subsonic
• subspace
• subspecies
• substance
• substance abuse
• substance abuser
• substandard
• substantia alba
• substantia grisea
• substantia nigra
• substantial
• substantialise
• substantiality
• substantialize
• substantially
• substantialness
• substantiate
• substantiating