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

• blackout
• blackouts
• Black Panther
• Black Panthers
• black paper
• black papers
• black pepper
• blackpoll
• blackpolls
• Black Pope
• black powder
• Black Power
• black pudding
• black puddings
• black quahog
• black-quarter
• black rat
• black rats
• black rhinoceros
• black rhinoceroses
• black robin
• black robins
• Black Rod
• black rot
• Black Russian