Science / Weather / Mammatocumulus: An obsolete term for cumulonimbus mammatus, it is a portion of a cumulonimbus cloud that appears as a pouch or udder on the under surface of the cloud. Although they do not cause severe weather, they MORE
Entertainment / Literature / Firmament: (Septuagint Greek, stereoma 'the beaten or hammered thing,' Latin firmamentum, 'the solid thing') In Genesis, a mysterious substance described as 'separating the lower waters from the upper waters' be MORE
Science / Biology / Mammal-Like Reptiles: Group of Permian-Triassic reptiles having some possible mammalian features, notably a more prominent dentary (tooth-bearing) bone and reduction of the incus and malleus (which are part of the reptilia MORE
Science / Biology / Placental Mammals: One of three groups of mammals that carry their young in the mothers body for long periods during which the fetus is nourished by the placenta. Humans are placental mammals. MORE
Science / Weather / Cumulonimbus Mammatus: A portion of a cumulonimbus cloud that appears as a pouch or udder on the under surface of the cloud. Although they do not cause severe weather, they often accompany storms. They may slowly vary in si MORE