tropism /trōˈpi-zm/ (biology)

1. Orientation in response to stimulus
2. A general term for heliotropism, geotropism, etc

tropistic /trop-istˈik/ adjective

Of tropism

• rice water
• ricey
• rich
• Richardia
• Richard Roe
• riched
• richen
• richened
• richening
• richens
• richer
• riches
• richesse
• richest
• riching
• rich-left
• richly
• richness
• richnesses
• rich rhyme
• richt
• Richter scale
• ricier
• riciest
• ricin