hard timber in the outer part of a tree while the middle is soft meaning in tamil

Word: hard timber in the outer part of a tree while the middle is soft - The english word have 64 alphabets and vowels..

Meanings in tamil :

puṟakkaz ( புறக்காழ் )
புறங்காழ்
வெளிவ யிரம்
புறங்காழ்
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