12-Letter Words Containing: A,M,O,R,S,T,T,U

• relating to or characterized by erythema

• of or relating to or resembling atheroma

• According to the World Meteorological Organization, a mid-level, principal cloud type, generally formless and dark grey in colour, which forms from altostratus occurring in layers at the middle altitude of the troposphere (usually above 2400 metres). Nimbostratus usually brings precipitation as the mid-level clouds thicken and subside into the low level of the troposphere. Frontal or cyclonic lift can also carry the top of a deep nimbostratus layer into the high levels of the troposphere. Also classified or characterized as multi-level; abbreviated Ns.

• A principal low-level cloud type, predominantly stratiform, in the form of a gray and/or whitish layer or patch, which nearly always has dark parts and is nonfibrous.

• the leader of a troop of Scouts

• a new word formed by joining two others and combining their meanings

• a large travelling bag made of stiff leather

• an event in which one thing is substituted for another

• the act of changing the arrangement of a given number of elements

• complete change in character or condition

• act of changing the lineal order of objects in a group