posology /po- or pə-solˈə-ji/

1. The science of quantity
2. The science of dosage

posological /-ə-lojˈi-kl/ adjective

• pithful
• pith hat
• pith hats
• pith helmet
• pith helmets
• pithier
• pithiest
• pithily
• pithiness
• pithinesses
• pithing
• pithless
• pithlike
• pithoi
• pithos
• piths
• pith-tree
• pith-trees
• pithy
• pitiable
• pitiableness
• pitiablenesses
• pitiably
• pitied
• pitier