1. (biology) the movement of an organism either towards or away from a source of light

Encyclopedia: Phototaxis

• grisette
• grisliness
• grisly
• grison
• Grison vittatus
• grissino
• grist
• gristle
• gristly
• gristmill
• grit
• grith
• gritrock
• grits
• gritstone
• gritter
• grittiness
• gritty
• grivet
• grizzle
• grizzled
• grizzly
• grizzly bear
• groak
• groan