spectrum

n. Phys. १ (as, an array of the components of an emission or wave separated and arranged in the order of some varying characteristic) पंक्ति (स्त्री.), स्पेक्ट्रम (पु.), २ (in case of band spectrum) वर्णालि (स्त्री.), पट्टपंक्ति (स्त्री.)