12-Letter Words Containing: A,I,N,R,S,T,T,U

• the cardinal number that is the sum of three and one

• Pertaining to a region in the Southern Hemisphere immediately north of Antarctica and covering the many islands of the southern parts of the Indian Ocean, Atlantic Ocean and Pacific Ocean, which are north of the Antarctic Convergence.

• Not distracted

• 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 person who is deliberately vague

• an arithmetic operation in which the difference between two numbers is calculated

• the act of subtracting (removing a part from the whole)

• A person who has matriculated or been registered on a list or roll, usually at a school.