adj. तेलकट

Light (a simple measn of comparing the intensities of two light sources) तैलबिंदु अनुदीप्तिमापी

पृष्ठसर्पी किरण

(incidence, as of X-rays, at a very small glancing angle) पृष्ठसर्पी आपतन

(the glancing angle occurring in grazing incidence) पृष्ठसर्पी कोन

धूसर वस्तु

adj. (also gray) धूसर

गुरुत्व तरंग

gravimeter

गुरुत्व घट, Elec. Eng. गुरुत्व घट