Definitions

1. adjective

having the form of or resembling a point; sharp and pointed

“The punctiform needles of the cactus plant pierced the skin.”

2. noun

a point or a sharp and pointed thing

“The mathematician studied the punctiform distribution of data on the graph.”

3. noun

a small, pointed protuberance on a surface, especially a rock or a fossil

“The geologist examined the punctiform structures on the ancient stone.”