Plano-convex : সমোত্তল;
Related Words
plano-convex  planoconvex  See Words Also In
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Appropriate Prepositions
Caution against(সাবধান): Take all cautions against the danger.
Compensate for(ক্ষতিপূরণ করা): I will compensate him for the loss.
Control over(নিয়ন্ত্রণ): He has no control over his sons.
Die for (আত্নত্যাগ করা): Our Chairman died for our country.
Infested with (অতিষ্ঠ): The room is infested with rats.
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Idioms
At the top of (শীর্ষে): The boy shouted at the top of his voice.
Bear hard upon (behave rudely-নির্দয়ভাবে ব্যবহার করা - V) Never bear hard upon your servants.
Out of sorts (সামান্য অসুস্থ): The baby is out of sorts after playing.
Part and parcel (অবিচ্ছেদ্য অংশ): Education is part and parcel to build a civilized nation.
Well off (স্বচ্ছল) - Jim and Della were not well off.