1. One's native language; the language learned by children and passed from one generation to the next
   - mother tongue, first language

Type of: natural language, tongue

• cytophotometry
• cytoplasm
• cytoplasmatic
• cytoplasmic
• cytoplasmically
• cytoplast
• cytoplastic
• cytosine
• cytoskeleton
• cytosmear
• cytosol
• cytostome
• cytotoxic
• cytotoxic drug
• cytotoxic T cell
• cytotoxicity
• cytotoxin
• czar
• Czar Alexander I
• Czar Alexander II
• Czar Alexander III
• Czar Nicholas I
• Czar Peter I
• czardas
• czardom