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Papilla (Noun)

(botany) a tiny outgrowth on the surface of a petal or leaf.

Nouns denoting plants.

The papilla on the surface of the petal gave it a soft, velvety appearance.
Microscopic examination revealed numerous papilla on the leaf's epidermis, contributing to its water-repellent properties.
Each flower had a distinctive pattern of tiny papilla that distinguished it from other species in the genus.
The papilla on the leaves of the plant provided additional surface area for gas exchange and photosynthesis.
A higher concentration of papilla on the upper surface of the leaf may have reduced transpiration in arid environments.

A small nipple-shaped protuberance concerned with taste, touch, or smell; "the papillae of the tongue".

Nouns denoting body parts.

The small bumps on the surface of his tongue were the papillae responsible for his sense of taste.
Each papilla contained taste buds with different sensory receptors that detected the various flavors in the soup.
After the tongue injury the fungiform papillae took several days to heal and regain their sensitivity.
The rear of the tongue featured a high concentration of circumvallate papillae.
During the inspection the doctor examined the small nodular papillae that lined the patient's tongue.

A small projection of tissue at the base of a hair or tooth or feather.

Nouns denoting body parts.

At the base of a hair follicle lies the dermal papilla, which provides the necessary nutrients for growth.
The soft papilla situated at the base of the tooth corresponds to the dental pulp inside the tooth itself.
In some cases, ectopic cilia formation occurs near the papilla in developmental anomalies.
Microscopic images depicted the prominent soft papilla surrounding the feather base during its formation stage.
Hair regeneration largely depends on factors affecting the dermal papilla directly within a normal scalp follicle.