papilla

noun

pa·​pil·​la pə-ˈpi-lə 

plural papillae pə-ˈpi-(ˌ)lē 

-ˌlī

: a small projecting body part similar to a nipple in form:

a

: a vascular process of connective tissue extending into and nourishing the root of a hair, feather, or developing tooth see hair illustration

b

: any of the vascular protuberances of the dermal layer of the skin extending into the epidermal layer and often containing tactile corpuscles

c

: any of the small protuberances on the upper surface of the tongue often containing taste buds

papillate

ˈpa-pə-ˌlāt  pə-ˈpi-lət 

adjective

papillose

ˈpa-pə-ˌlōs 

pə-ˈpi-ˌlōs

adjective

Examples of papilla in a Sentence

Recent Examples on the Web

The papilla sends signals about growth as well as the color and size of the hair strands.1 When your hair is in the growing phase, a strand emerges from the root and grows through the hole at the top of the follicle. —Nancy Lebrun, Verywell Health, 15 Aug. 2024

There are many different types of taste buds, but all have stalks and papilla that round out with undercuts under the stalks, similar to the shape of a mushroom, explains Dr. Fraundorf. —Daley Quinn, Verywell Health, 1 Apr. 2024

In normal skin, osteopontin comes from dermal papilla, which sit at the base of hair follicles. —Max G. Levy, WIRED, 12 July 2023

This is what happened on July 3, when the volcano exploded (see above), sending ash, papilla (larger volcanic fragments) and volcanincn bombs across the island, generating a small pyroclastic flow that headed down the side of the volcano into the ocean (see below). —Erik Klemetti, Discover Magazine, 5 July 2019

The dermal papilla are cells at the base of each hair follicle that regulate growth and development. —Amber Smith, Discover Magazine, 22 Apr. 2022

The dermal papilla need vitamin D to grow properly, which then affects the health of individual strands and the scalp as a whole. —Amber Smith, Discover Magazine, 22 Apr. 2022

Hair dermal papillae cells are specialized mesenchymal cells located in the dermal papilla, where the latter is found at the bottom of hair follicles. —Amber Smith, Discover Magazine, 8 Sep. 2021

Follicle Protection Complex zooms in on hair follicle stem cells and dermal papilla cells to promote hair growth. —Bianca Salonga, Forbes, 24 Apr. 2022

Word History

Etymology

Latin, nipple, from diminutive of papula pimple; akin to Lithuanian papas nipple

First Known Use

1671, in the meaning defined above

Phrases Containing papilla

• renal papilla

Kids Definition

papilla

noun

pa·​pil·​la pə-ˈpil-ə 

plural papillae -ˈpil-ē 

-ˌī

: a small bodily structure (as one on the surface of the tongue that often contains taste buds) that resembles a tiny nipple in form

Medical Definition

papilla

noun

pa·​pil·​la pə-ˈpil-ə 

plural papillae -ˈpil-(ˌ)ē  -ˌī 

: a small projecting body part similar to a nipple in form: as

a

: a vascular process of connective tissue extending into and nourishing the root of a hair, feather, or developing tooth

b

: any of the vascular protuberances of the dermal layer of the skin extending into the epidermal layer and often containing tactile corpuscles

c

: renal papilla

d

: any of the small protuberances on the upper surface of the tongue see circumvallate papilla, filiform papilla, fungiform papilla, interdental papilla, optic papilla