As already described before, the most used flange types acc. to ASME B16.5 are: Welding Neck, Slip On, Socket Weld, Lap Joint, Threaded and Blind flange. Below you will find a short description and definition of each type, completed with an detailed image. Most common flange types.
Medical Definition of subungual. : situated or occurring under a fingernail or toenail a subungual abscess.
And although the term imaginal disc is used only for holometabolous insects, it is only the invaginated morphology of most discs that distinguishes them from structures like the external wing pads of hemimetabolous insects, which also are morphologically distinct and form adult wings during the final molt.