A prepositional phrase is a group of words that starts with a preposition and ends with the object of the preposition (a noun, pronoun, or noun phrase). Let's look at some s â¦ teps to identifying prepositional phrases. prepositional phrase is a group of words that starts with a preposition and ends with the object of the preposition (a noun, pronoun, or noun phrase). Let's look at some s â¦ teps to identifying prepositional phrases.
A morcellator is a surgical instrument used for division and removal of large masses of tissues during laparoscopic surgery. In laparoscopic hysterectomy the uterus is minced up, or morcellated, into smaller pieces inside the woman's belly cavity in order to extract from the abdomen.
Hygrometer, instrument used in meteorological science to measure the humidity, or amount of water vapour in the air. Several major types of hygrometers are used to measure humidity. 1  Mechanical hygrometers make use of the principle that organic substances (particularly finer substances such as goldbeaterâs skin [ox gut] and human hair) contract and expand in response to the humidity. Contraction and expansion of the hair element in a mechanical hygrometer causes the spring to move the needle on the dial.