WordNet (3.0) WordNet (3.0)
(n) measuring instrument for measuring the refractive index of a substance
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
n. [ Refraction + -meter. ] (Opt.) A contrivance for exhibiting and measuring the refraction of light. [ 1913 Webster ]
เพิ่มคำศัพท์
ทราบความหมายของคำศัพท์นี้? กด [เพิ่มคำศัพท์] เพื่อใส่คำนี้พร้อมความหมาย เพื่อเป็นวิทยาทานแก่ผู้ใช้ท่านอื่น ๆ
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