Acœmetæ

Acœmetæ, an order of monks in the 5th century who by turns kept up a divine service day and night.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Acne * Aconca`gua
Ach`met I.
Achit`ophel
Achromatism
Acierage
A`ci-Rea`lë
A`cis
Ack`ermann, R.
Acland, Sir Henry
Aclinic Line
Acne
Acœmetæ
Aconca`gua
Aconite
Aconitine
Acorn-shells
Acoustics
Acrasia
Acre, St. Jean d'
Acres, Bob
Acroamatics
Acrolein