skullcap

noun

skull·​cap ˈskəl-ˌkap 

1

: a close-fitting cap

especially : a light brimless cap for indoor wear

2

: any of various mints (genus Scutellaria) having a bell-shaped calyx that when inverted resembles a helmet

3

: the upper portion of the skull : calvarium

Examples of skullcap in a Sentence

Recent Examples on the Web

He's shown wearing a black skullcap, black facemask on his chin, red sweatshirt and red sweatpants, and sneakers. —Jesse Zanger, CBS News, 30 Mar. 2026

Officials concluded Harvard did not adequately address concerns raised about antisemitism that drove some students to conceal their religious skullcaps and avoid classes. —Moriah Balingit, Los Angeles Times, 20 Mar. 2026

Altuzarra delivered both structured pillboxes and delicate skullcaps that feel timeless yet current. —Andrea Zendejas, Vogue, 19 Dec. 2025

The collection includes fabrics and objects that had served daily domestic functions and rare ritual ones: shrine covers and skullcaps, costumes and carpets. —Benjamin H. D. Buchloh, Artforum, 1 Dec. 2025

Word History

First Known Use

1682, in the meaning defined at sense 1

Rhymes for skullcap

• bandgap
• bitmap
• blackcap
• blackstrap
• bootstrap
• burlap
• claptrap
• entrap
• foolscap
• kidnap
• kneecap
• madcap

Kids Definition

skullcap

noun

skull·​cap ˈskəl-ˌkap 

: a close-fitting cap

especially : a light cap without brim for indoor wear

Medical Definition

skullcap

noun

skull·​cap ˈskəl-ˌkap 

: the upper portion of the skull : calvarium