crossed nicols refers to a pair of polarizing filters oriented at 90-degree angles to each other, commonly used in optical experiments.

क्रॉस निकोल धाराएँ

English Usage: The scientist observed the behavior of the crystals under crossed nicols.

Hindi Usage: वैज्ञानिक ने क्रिस्टलों के व्यवहार को क्रॉस निकोल धाराओं के नीचे देखा।

to cross can mean to intersect or pass over something.

उनका पार करना

English Usage: We crossed the street safely.

Hindi Usage: हमने सड़क को सुरक्षित रूप से पार किया।

cross can indicate being angry or annoyed.

क्रोधित

English Usage: She was cross with her friend for being late.

Hindi Usage: वह अपने दोस्त के देर से आने पर क्रोधित थी।