1. The number that is represented as a one followed by 12 zeros
   - trillion, one million million
    
2. [Brit] The number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed is frequently seen
   - billion [Brit, archaic], one million million [Brit]

Derived forms: 1000000000000s

Type of: large integer

• phenylacetamide
• phenylalanine
• phenylamine
• phenylbutazone
• phenylephrine
• phenylethylene
• phenylic acid
• phenylketonuria
• phenylpropanolamine
• phenyltoloxamine
• phenytoin
• pheochromocytoma
• pheresis
• pheromone
• phew
• phi
• phi coefficient
• phi correlation
• phial
• Phidias
• Phil Anderson
• Philadelphaceae
• Philadelphia
• Philadelphia fleabane
• Philadelphia lawyer