Pipettes and it's types. Pipettes. These are used to transfer a known volume of liquid from one container to another. They are designed either to contain (TC) a specific volume of liquid or to deliver (TD) a specified volume.
1 Frock (especially in the phrase short frock) is also a child's dress or light overdress. 2  A frock is a dense knitted overgarment worn by sailors and fishermen, as guernsey frock, jersey frock (now usually simply guernsey and jersey). 3  The name oil frock has been used for a type of sailor's oilskin.
Noun. 1. crock-a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink. carbon black, lampblack, smut, soot.rock. n. 1. (Ceramics) an earthen pot, jar, etc. 2. (Ceramics) a piece of broken earthenware. 3.