The poet wrote several beautiful prothalamions for the wedding ceremony.

The botanist collected several prothalamiums for her research.

The prothoracic glands produce hormones that regulate insect development.

Prothrombinases are enzymes that convert prothrombin into thrombin.

The prothemata of the conference were discussed in the meeting.

The Prothro family has a long history in this town.

My friend's last name is Prothero.

The Protheros are a well-known family in the town.

The prothonotarial duties include maintaining court records and issuing subpoenas.

The prothonotariat is the lowest social class in the feudal system.