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cross-ratio
(geometry) A special number associated with an ordered quadruple of collinear points, particularly points on a projective line, and preserved by the fractional linear transformations.
cross-infection
mutual infection between infected objects, animals, etc
take the cross
(chiefly historical) To accept a sign or badge depicting the Christian cross as part of an oath or vow, especially to take part in a crusade.
（ present singular third-person ）
（ participle present ）
（ past ）
（ participle past ）
cross-garnets
plural of cross-garnet
cross-garnet
A hinge having one strap perpendicular and the other strap horizontal, giving it the form of an Egyptian or T cross.
cross-springer
(architecture) One of the ribs in a groined arch, springing from the corners in a diagonal direction.
cross-springers
plural of cross-springer
cross-reading
The reading of the lines of a newspaper directly across the page, instead of down the columns, thus producing a ludicrous combination of ideas.
cross-readings
plural of cross-reading
cross bike
A hybrid bicycle intended for general recreational and utility use, usually with flat handlebars. / A cyclocross bicycle.
