Semilens definitions

Semilens

• (n.) The half of a lens divided along a plane passing through its axis.
Found on http://thinkexist.com/dictionary/meaning/semilens/

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Semilens

Sem'i·lens` noun (Opt.) The half of a lens divided along a plane passing through its axis.
Found on http://www.encyclo.co.uk/webster/S/64

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