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

Cardiosphygmograph (n.)
definition: A combination of cardiograph and sphygmograph.

Cardiosphygmograph is an 18 letter word that begins with a C and ends in a H

Characteristically (ad)
definition: In a characteristic manner; in a way that characterizes.

Characteristically is an 18 letter word that begins with a C and ends in a Y

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

Chromolithographer (n.)
definition: One who is engaged in chromolithography.

Chromolithographer is an 18 letter word that begins with a C and ends in an R

Chromolithographic (a.)
definition: Pertaining to
Or made by chromolithography.
Chromolithographic is an 18 letter word that begins with a C and ends in a C

Chuck-Will's-widow (n.)
definition: A species of goatsucker (Antrostomus Carolinensis)
Of the southern United States; -- so called from its note.
Chuck-Will's-widow is an 18 letter word that begins with a C and ends in a W

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

Connate-perfoliate (a.)
definition: Connate or coalescent at the base so as to produce a broad foliaceous body through the center of which the stem passes; -- applied to leaves
As the leaves of the boneset.
Connate-perfoliate is an 18 letter word that begins with a C and ends in an E

Consolato del mare
definition: A collection of maritime laws of disputed origin
Supposed to have been first published at Barcelona early in the 14th century. It has formed the basis of most of the subsequent collections of maritime laws.
Consolato del mare is an 18 letter word that begins with a C and ends in an E

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