Argillo-calcareous (a.)
definition: Consisting of
Or containing clay and calcareous earth.
Argillo-calcareous is an 18 letter word that begins with an A and ends in an S

Calcareo-siliceous (a.)
definition: Consisting of
Or containing calcareous and siliceous earths.
Calcareo-siliceous is an 18 letter word that begins with a C and ends in an S

Charges d'affaires (pl)
definition: of Charge d'affaires

Charges d'affaires is an 18 letter word that begins with a C and ends in an S

Comprehensibleness (n.)
definition: The quality of being comprehensible; comprehensibility.

Comprehensibleness is an 18 letter word that begins with a C and ends in an S

Cumu-cirro-stratus (n.)
definition: Nimbus
Or rain cloud. See Nimbus and Cloud.
Cumu-cirro-stratus is an 18 letter word that begins with a C and ends in an S

Electro-ballistics (n.)
definition: The art or science of measuring the force or velocity of projectiles by means of electricity.

Electro-ballistics is an 18 letter word that begins with an E and ends in an S

Eleuthero-petalous (a.)
definition: Having the petals free, that is, entirely separate from each other; -- said of both plant and flower.

Eleuthero-petalous is an 18 letter word that begins with an E and ends in an S

Hypermetamorphosis (n.)
definition: A kind of metamorphosis
In certain insects in which the larva itself undergoes remarkable changes of form and structure during its growth.
Hypermetamorphosis is an 18 letter word that begins with a H and ends in an S

Impracticabilities (pl)
definition: of Impracticability

Impracticabilities is an 18 letter word that begins with an I and ends in an S

Impressionableness (n.)
definition: The quality of being impressionable.

Impressionableness is an 18 letter word that begins with an I and ends in an S

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