When necessary, always create a JPG or PNG for use on the web from this master vector file. Just be sure to save the new raster file in the exact dimensions needed. *A PDF is generally a vector file. However, depending how a PDF is originally created, it can be either a vector or a raster file.
tetracaine - a crystalline compound used in the form of a hydrochloride as a local anesthetic local anaesthetic, local anesthetic, topical anaesthetic, topical anesthetic, local - anesthetic that numbs a particular area of the body
Note its four fused rings. Tetracyclic antidepressants (TeCAs) are a class of antidepressants that were first introduced in the 1970s. They are named after their chemical structure, which contains four rings of atoms, and are closely related to the tricyclic antidepressants (TCAs), which contain three rings of atoms. 1 List of TeCAs.