Antigen : রক্তস্রোতের মধ্যে বাইরের থেকে প্রবিষ্ট পদার্থ যা রোগজীবাণু-প্রতিরোধক পদার্থ সৃষ্টি করে;
Related Words
anti gen  antigen  antitoxin  See Words Also In
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Appropriate Prepositions
Contribution to (অবদান): His invention made a major contribution to road safety.
Damage to (ক্ষতি): The flood caused much damage to crops last year.
Hatred for (ঘৃণা): I have no hatred for anyone.
Loyal to (অনুগত): Every citizen must be loyal to the state.
Quick at (চটপটে): A cashier must be quick at figures.
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Idioms
At home (comfortable— আরাম) He feels at home in Dhaka now.
Base born (নীচ বংশজাত, খারাপ জাত—adj.) He is a base born person; I cannot go along well with him.
In a nutshell (সংক্ষেপে): Tell the whole story in a nutshell.
Rank and file (সাধারণ লোক): We should pay attention to the rank and file of the country.
Ups and downs (উত্থান পতন): There are ups and downs in a man’s life.