The right logo tells both customers and potential customers a lot about the practice instantly, without much conscious thought on their part. Just as the five-year-old knows that sign means delicious food is near, you want your medical logo design to symbolize what your practice is about.
In the American English, bracket usually refers specifically to the square or box type. In British English, bracket normally refers to the round type, which is called a parenthesis mark in American usage. Parentheses are the curved brackets ( ).
Parens and Brackets and Braces, Oh My! If you paid attention in English class when they were discussing the use of parentheses, curly braces, square brackets and so on I'm afraid it won't do you much good in Java. Java has a specific use for each of these, and it definitely pays to get then sorted out. Knowing the names for each of the symbols is a good starting point: { } are curly braces. ( ) are parentheses (one is called a parenthesis.) Parens or paren for short. [ ] are square brackets. < > are called angle brackets.