Term: nacreous cloud: a luminous iridescent cloud at a high altitude that may be seen when the sun is a few degrees below the horizon
Broader: cloud: a visible mass of water or ice particles suspended at a considerable altitude | Unrelated: ordinary: (heraldry) any of several conventional figures used on shields
Broader: cloud: a visible mass of water or ice particles suspended at a considerable altitude | Unrelated: anoectochilus: genus of delicate Asiatic orchids
Broader: cloud: a visible mass of water or ice particles suspended at a considerable altitude | Unrelated: neotoma: packrats
Broader: cloud: a visible mass of water or ice particles suspended at a considerable altitude | Unrelated: eustoma: small genus of herbs of warm regions of southern North America to northern South America
Broader: cloud: a visible mass of water or ice particles suspended at a considerable altitude | Unrelated: bill: a brim that projects to the front to shade the eyes
Broader: cloud: a visible mass of water or ice particles suspended at a considerable altitude | Unrelated: transposition: (mathematics) the transfer of a quantity from one side of an equation to the other along with a change of sign
Broader: cloud: a visible mass of water or ice particles suspended at a considerable altitude | Unrelated: self-preservation: preservation of yourself from harm; a natural or instinctive tendency
Broader: cloud: a visible mass of water or ice particles suspended at a considerable altitude | Unrelated: kwell: a preparation of lindane (trade name Kwell) that is used to kill lice and itch mites; available in cream or shampoo
Broader: cloud: a visible mass of water or ice particles suspended at a considerable altitude | Unrelated: ovary: (vertebrates) one of usually two organs that produce ova and secrete estrogen and progesterone
Broader: cloud: a visible mass of water or ice particles suspended at a considerable altitude | Unrelated: poison sumac: dermatitis resulting from contact with a poison sumac plant