Lewisian /loo-izˈi-ən or -isˈ/

1. Of Lewis in the Outer Hebrides
2. Precambrian (geology)

• by hand
• by heart
• by hook or by crook
• by inches
• by itself
• by Jove
• byke
• byked
• bykes
• byking
• bylander
• by-lane
• by-lanes
• bylaw
• bylaws
• by leaps and bounds
• byline
• bylines
• by little and little
• bylive
• by means
• by means of
• by mistake
• by-motive
• by-motives