n. [ Gr. &unr_; wool + -meter. ] (Opt.) An instrument for measuring the diameters of minute particles or fibers, from the size of the colored rings produced by the diffraction of the light in which the objects are viewed. [ 1913 Webster ]
n. [ Gr. &unr_;; peri` around + &unr_; measure: cf. F. périmètre. ] 1. (Geom.) The outer boundary of a body or figure, or the sum of all the sides. [ 1913 Webster ]
2. An instrument for determining the extent and shape of the field of vision. [ 1913 Webster ]
n. [ Gr. &unr_;; peri` around + &unr_; measure: cf. F. périmètre. ] 1. (Geom.) The outer boundary of a body or figure, or the sum of all the sides. [ 1913 Webster ]
2. An instrument for determining the extent and shape of the field of vision. [ 1913 Webster ]
แสดงได้ทั้งความหมายของคำเดี่ยว และคำผสม ได้อย่างถูกต้อง
เช่น Secretary of State=รัฐมนตรีต่างประเทศของสหรัฐฯ (ในภาพตัวอย่าง),
High school=โรงเรียนมัธยมปลาย