BTD
BTD is best known as the title of the popular Bloons Tower Defense series of casual strategy games, though it also appears in medical contexts such as biotinidase deficiency and diet discussions.
Medical
Miscellaneous
Balloons Tower Defence
Brave Tequila Drinking
Ballons Tower Defence
Bloons Tower Defense
Bearing Temperature Detector
Billed to Date
Boot To Desktop
Belgium Testing Days
Balkan Trust for Democracy
Brightness Temperature Difference
Broadband Trunk and Distribution
Blood Type Diet
Before the Dawn
Bomb The Dudes