Term: star shell: an artillery shell containing an illuminant
Broader: visual signal: a signal that involves visual communication | Unrelated: heart-lung machine: a pump to maintain circulation during heart surgery; diverts blood from the heart and oxygenates it and then pumps it through the body
Broader: visual signal: a signal that involves visual communication | Unrelated: piddock: marine bivalve that bores into rock or clay or wood by means of saw-like shells
Broader: visual signal: a signal that involves visual communication | Unrelated: animal fiber: fiber derived from animals
Broader: visual signal: a signal that involves visual communication | Unrelated: diverticulitis: inflammation of a diverticulum in the digestive tract (especially the colon); characterized by painful abdominal cramping and fever and constipation
Broader: visual signal: a signal that involves visual communication | Unrelated: salutation: word of greeting used to begin a letter
Broader: visual signal: a signal that involves visual communication | Unrelated: passage: the act of passing from one state or place to the next
Broader: visual signal: a signal that involves visual communication | Unrelated: vena cava: either of two large veins that return oxygen-depleted blood to the right atrium of the heart
Broader: visual signal: a signal that involves visual communication | Unrelated: appropriation: a deliberate act of acquisition of something, often without the permission of the owner
Broader: visual signal: a signal that involves visual communication | Unrelated: wulfenite: a yellow to orange or brown mineral used as a molybdenum ore
Broader: visual signal: a signal that involves visual communication | Unrelated: yttrium: a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys