trihydric

"The number three is written with the digit three. "

"The students worked on the science project in small groups. "

"Ethanol is a hydroxy compound used in hand sanitizers. "

"The meaning of the teacher's hand gesture was clear: "Pay attention." "

"Although the label priced this poster at three pounds, I got it for two."

"I have a house and a car."

"The intricate making of the model airplane showcased the student's skill. "

"The box contained old photographs. "

"Beer is often sold in bottles."

"My father enjoys a glass of alcohol with dinner. "

"The guard blew his whistle to indicate imminent departure."

"The scientist added a hydroxyl group to the molecule to make it a type of alcohol. "