চক-নিমামাচক-মাটি
চক-পেঞ্চিল (Assamese) [ Roman: sok-pen.sil]
Contributed by: Tapan K Sarma(তপন কুমাৰ শৰ্মা) on 2014-10-24
1. (Material Noun-Neuter) a soft, white, powdery limestone consisting chiefly of fossil shells of foraminifers which is often used for marking, as a blackboard crayon ব্লেকব’ৰ্ডত লিখিবলৈ ব্যৱহাৰ কৰা বগা মাটিৰ পদাৰ্থ