COLOPHON n.
monogram, or cipher, containing the place and date of publication, printer's name, etc., formerly placed on the last page of a book. The colophon, or final description, fell into disuse, and . . . the title page had become the principal direct means of identifying the book. De Morgan. The book was uninjured from title…
COMPRESSION PROJECTILE n.
e the grooves of a rifle by means of a soft copper band firmly attached near its base or, formerly, by means of an envelope of soft metal. In small arms the modern projectile, having a soft core and harder jacket, is subjected to compression throughout the entire cylindrical part.