Noun:

অন্ধকার ক্ষেত্র আলোকসজ্জা,

dark field illumination's Usage Examples:

Using light microscopy, treponemes are visible only by using dark field illumination.

Optical mice that use dark field illumination can function reliably even on such surfaces.

incident bright and dark field as well as transmitted bright and dark field illumination to see pin holes, edge defects and many forms of contamination.

illumination for kinematographs, microscope applications, and light and dark field illumination, among others.

Synonyms:

parcel; lawn; grounds; parcel of land; paddy field; firebreak; curtilage; tract; paddy; yard; grain field; fireguard; rice paddy; grainfield; piece of ground; campus; piece of land;

Antonyms:

attractive; unfasten; undock; disconnect; figure;