Abolitionist (n.)
definition: A person who favors the abolition of any institution
Especially negro slavery.
Abolitionist is a 12 letter word that begins with an A and ends in a T

Accordionist (n.)
definition: A player on the accordion.

Accordionist is a 12 letter word that begins with an A and ends in a T

Accouchement (n.)
definition: Delivery in childbed

Accouchement is a 12 letter word that begins with an A and ends in a T

Accouplement (n.)
definition: That which couples
As a tie or brace.
Accouplement is a 12 letter word that begins with an A and ends in a T

Accouplement (n.)
definition: The act of coupling
Or the state of being coupled; union.
Accouplement is a 12 letter word that begins with an A and ends in a T

Accroachment (n.)
definition: An encroachment; usurpation.

Accroachment is a 12 letter word that begins with an A and ends in a T

Acephalocyst (n.)
definition: A larval entozoon in the form of a subglobular or oval vesicle
Or hydatid filled with fluid sometimes found in the tissues of man and the lower animals; -- so called from the absence of a head or visible organs on the vesicle. These cysts are the immature stages of certain tapeworms. Also applied to similar cysts of different origin.
Acephalocyst is a 12 letter word that begins with an A and ends in a T

Administrant (a.)
definition: Executive; acting; managing affairs.

Administrant is a 12 letter word that begins with an A and ends in a T

Administrant (n.)
definition: One who administers.

Administrant is a 12 letter word that begins with an A and ends in a T

Admonishment (n.)
definition: Admonition.

Admonishment is a 12 letter word that begins with an A and ends in a T

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