almacantar /al-mə-kanˈtər/ or almucantar /al-mū-kanˈtər/ (astronomy)

1. A circle of altitude, parallel to the horizon
2. An instrument for determining a star's passage across an almacantar

• ruche
• ruched
• ruches
• ruching
• ruchings
• ruck
• rucked
• rucking
• ruckle
• ruckled
• ruckles
• ruckling
• rucks
• rucksack
• rucksacks
• ruckseat
• ruckseats
• ruckus
• ruckuses
• rucola
• rucolas
• ructation
• ructations
• ruction
• ructions