nounπShareThe head of a pin. (Frequently used in size comparisons.)"The tiny insect was so small; its head was no bigger than a pinhead. "partappearanceitemChat with AIVocabulary GamePractice Reading
nounπShareAn ignorant, naive, foolish, or stupid person."The pinhead kid in class didn't understand the simple instructions. "personcharacterattitudemindChat with AIVocabulary GamePractice Reading
nounπShareA telemark skier."Down the steep slope, the pinhead carved elegant turns, his heels free with each graceful motion. "sportpersonChat with AIVocabulary GamePractice Reading
nounπShareA human head that is unusually tapered or small, often due to microcephaly, or a person with that trait. Often promoted in freak shows as "human pinheads"."The old circus posters advertised a "human pinhead," displaying a person with a noticeably small and tapered head. "bodymedicineappearancepersonhumanentertainmenthistoryinhumanChat with AIVocabulary GamePractice Reading
nounπShare(pet stores) A newborn cricket used as food for pets."My baby gecko only eats live food, so I bought a container of pinheads from the pet store for him. "animalfoodinsectChat with AIVocabulary GamePractice Reading
nounπShare(mycoculture) The immature juvenile fruiting body of a mushroom prior to its gills opening."The mushroom cultivator carefully watched the substrate for the appearance of tiny pinheads, the first sign of a successful fruiting. "biologyplantorganismChat with AIVocabulary GamePractice Reading