An acquired reflex is a learned response that is developed through experience.

अर्जित रिफ्लेक्स (सीखी हुई प्रतिक्रिया)

English Usage: The acquired reflex of raising his hand when he hears the bell made him stand out in class.

Hindi Usage: घंटी सुनते ही हाथ उठाने का अर्जित रिफ्लेक्स उसे कक्षा में अलग दिखाता था।

To acquire can mean to gain possession or control over something.

प्राप्त करना

English Usage: She worked hard to acquire the skills necessary for the job.

Hindi Usage: वह नौकरी के लिए आवश्यक कौशल प्राप्त करने के लिए कड़ी मेहनत करती थी।