See Also: crossing(dictionary)
crossing(dictionary)
Crossing over(health)
Crossing over(medicine)
grade crossing(dictionary)
uneven crossing-over(medicine)
unequal crossing over(medicine)
somatic crossing-over(medicine)
four-strand crossing over(medicine)
level crossing(dictionary)

crossing (iou)



crossing noun. LME.
[from CROSS verb + -ING1.]
The action or an act of making or marking with the sign of the cross; the action or an act of drawing lines across; striking off or out by drawing lines across. LME.
The action or an act of passing, lying, or placing across; the action or an act of passing in an opposite direction. LME.
The action or an act of thwarting; an act of resistance or opposition. L16.
Dishonest practice. rare. L16.
a. A place at which a river or road is crossed; esp. a designated part of a road where crossing is facilitated. M17.
pedestrian crossing, pelican crossing, zebra crossing, etc.
b. The intersection of two roads, two railway lines, etc., or of one with another. L17.
grade crossing: see GRADE noun. level crossing: see LEVEL adjective.
c. The part of a cruciform church where the transepts cross the nave. M19.
The action or an instance of crossbreeding. M19.
C. Sagan Such crossings are about as reasonable as the mating of a man and a petunia.
Comb.: crossing over Biology the exchange of chromosome segments between paired homologous chromosomes, resulting in a mixture of parental characters in offspring; crossing sweeper Hist. a person who sweeps a street crossing.