Abscissa (n.)
definition: One of the elements of reference by which a point
As of a curve is referred to a system of fixed rectilineal coordinate axes.
Abscissa is an 8 letter word that begins with an A and ends in an A

Aceldama (n.)
definition: The potter's field
Said to have lain south of Jerusalem purchased with the bribe which Judas took for betraying his Master and therefore called the field of blood. Fig.: A field of bloodshed.
Aceldama is an 8 letter word that begins with an A and ends in an A

Acephala (n.)
definition: That division of the Mollusca which includes the bivalve shells
Like the clams and oysters; -- so called because they have no evident head. Formerly the group included the Tunicata Brachiopoda and sometimes the Bryozoa. See Mollusca.
Acephala is an 8 letter word that begins with an A and ends in an A

Achatina (n.)
definition: A genus of land snails
Often large common in the warm parts of America and Africa.
Achatina is an 8 letter word that begins with an A and ends in an A

Acinesia (n.)
definition: Same as Akinesia.

Acinesia is an 8 letter word that begins with an A and ends in an A

Aconitia (n.)
definition: Same as Aconitine.

Aconitia is an 8 letter word that begins with an A and ends in an A

Actinula (n.)
definition: A kind of embryo of certain hydroids (Tubularia)
Having a stellate form.
Actinula is an 8 letter word that begins with an A and ends in an A

Adelphia (n.)
definition: A brotherhood
Or collection of stamens in a bundle; -- used in composition as in the class names Monadelphia Diadelphia etc.
Adelphia is an 8 letter word that begins with an A and ends in an A

Adularia (n.)
definition: A transparent or translucent variety of common feldspar
Or orthoclase which often shows pearly opalescent reflections; -- called by lapidaries moonstone.
Adularia is an 8 letter word that begins with an A and ends in an A

Adynamia (n.)
definition: Considerable debility of the vital powers
As in typhoid fever.
Adynamia is an 8 letter word that begins with an A and ends in an A

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