Anagrams of: IMPELLER

• an eating apple that somewhat resembles a McIntosh; used as both an eating and a cooking apple

• the domain ruled by an emperor or empress; the region over which imperial dominion is exercised

• a group of countries under a single authority

• a monarchy with an emperor as head of state

• a group of diverse companies under common ownership and run as a single organization

• a minor match preceding the main event

• an examination taken by graduate students to determine their fitness to continue

• someone who has a limp and walks with a hobbling gait

• an infant that is born prior to 37 weeks of gestation

• Any diastereoisomer that has the opposite configuration at only one of the stereogenic centres.

• of or relating to or being an integer that cannot be factored into other integers

• a natural number that has exactly two distinct natural number divisors: 1 and itself

• the period of greatest prosperity or productivity

• the second canonical hour; about 6 a.m.

• the time of maturity when power and vigor are greatest

• first in rank or degree

• used of the first or originating agent

• of superior grade

• being at the best stage of development

• insert a primer into (a gun, mine, or charge) preparatory to detonation or firing

• cover with a primer; apply a primer to

• fill with priming liquid

• urge or force (a person) to an action; constrain or motivate

• cause to move forward with force

• someone who works in a mill (especially a grain mill)

• United States bandleader of a popular big band (1909-1944)

• machine tool in which metal that is secured to a carriage is fed against rotating cutters that shape it

• United States novelist whose novels were originally banned as pornographic (1891-1980)

• any of various moths that have powdery wings

• United States playwright (1915-2005)