A baby bat is called a pup. http://www.encyclopedia.com/doc/1G1-186991287.html
The correct term for the laboratory tool used for transferring small amounts of liquid is "pipette."
That depends on the circumstances it is used in.
The correct spelling is "lakh". It is a term used in South Asia to represent 100,000.
Uhm... You understand the term 'gigabyte' is not a term used to measure time... correct?
That is the correct spelling of "password" (a term used for security purposes).
preauthorization
The correct use of the term is "codebase". This term is used in regards to computer software development. This is used to describe a whole collection of source code that was used to create a specific application or component.
"Mise en place" is the term used for cooking preparation. It is a French term and translates as "to put into place".
The correct past tense form of "spit" is "spat." "Spitted" is not commonly used.
Skin is the correct term. For a more scientific sounding term, epidermis can be used. It refers to the outermost layer of the skin.
"I am a Filipino" is the correct way to say it. "Filipino" is the preferred term for people and things related to the Philippines, while "Pilipino" is an older term used for the national language of the Philippines.
It's not a word, it's a term or a figure of speech. And yes, it's correct.