No, it is not a noun. It is the past tense of the verb "to twitch."
you smelled something you never smelled be for
The method of character for the sentence, "His tail twitched rhythmically as he observed the workers in the field," is indirect character's thoughts. This is a way of showing information about a character through his thoughts.
move abruptly
D. Indirect: Charecters Appearence
A singular possessive noun is used to show that something belongs to a person or thing.Possessive nouns show ownership, possession, purpose, or origin.Examples:My brother's car is parked in the driveway. (ownership)The squirrel's tail twitched back and forth. (possession)They have an antique lady's dressing table for sale. (purpose)I've read many of Shakespeare's plays. (origin)
The word cats is a common plural noun. It requires no apostrophe.All cats have long whiskers and sharp claws.If the word cats has a possession or belonging, it needs an apostrophe.The cats' whiskers twitched as they studied the prey.I was tired of being scratched by my three cats' sharp claws.
I don't think so because my cat had two liters of kittens and none of them twitched.
life force
Pizzicato is a musical direction, referring to plucking the strings of a violin or other stringed instrument with one's finger. It comes from the Italian meaning "pinched" or "twitched."
life force
A "vitality" is a life force.
The two are not related but I have seen bearing knocks so bad the engine jumped and twitched like it was missing, about ten seconds later it threw a con rod though the side of the block