Collet. The setting which surrounds the stone of a ring. (See Crampon.)
Colliciæ, Colliquiæ. (1) Broad open drains through fields. (2) Gutters of hollow tiles (umbrices) placed beneath the roof of a house to receive the rain-water, and convey it into the Impluvium.
Colliciaris (sc. tegula). A hollow tile employed in the construction of colliciæ.
Collodion. A solution of gun cotton in ether, used in photography.
Collum Vinarium (from collum, a neck). A colander or wine-strainer. The custom of straining wine dates back beyond our era, and Christ made an allusion to it when he told the Pharisees that their colla allowed a camel to pass, while they kept back a gnat. Snow was put into a strainer or a bag, called respectively collum nivarium, saccus nivarius, through which the wine was allowed to filter, not only to cool it, but because the intense cold cleared the wine, and rendered it sparkling and transparent; it was then called vinum saccatum. The Christian Church from the first adopted this instrument in its liturgy; another name for it was colatorium. (See Nassa.) The colander for wine was made of silver, or bronze, or other metal. The linen cloth called saccus was not used for wine of any delicacy, as it spoiled its flavour.
Colluviarium, R. An opening made at regular intervals in the channel of an aqueduct, for ventilation. As this opening formed a kind of well, it was also called Puteus (q.v.).
Collyra, Gr. and R. A kind of bread made in a special manner, which was eaten with soup or sauce; there was also a cake so called.
Collyris (κολλυρὶς, synonym of κολλύρα, q.v.). A head-dress worn by Roman ladies, resembling in shape the bread called κολλύρα; the latter was called κολλυρὶς as well.
Fig. 180. Collyrium or unguent Vase; Egyptian. Museum of the Louvre.