kernel

noun

ker·​nel ˈkər-nᵊl 

1

: the inner softer part of a seed, fruit stone, or nut

… as brown in hue as hazelnuts, and sweeter than the kernels.

—William Shakespeare

2

: a whole seed of a cereal

a kernel of corn

3

: a central or essential part : germ

like many stereotypes … this one too contains some kernels of truth

—S. M. Lyman

4

chiefly dialectal : a fruit seed

5

mathematics : a subset of the elements of one set (such as a group) that a function (such as a homomorphism) maps onto an identity element of another set

Synonyms

• bottom line
• bull's-eye
• centerpiece
• core
• crux
• essence
• gist
• heart
• keynote
• meat
• meat and potatoes
• net
• nub
• nubbin
• nucleus
• pith
• pivot
• point
• root
• sum

Examples of kernel in a Sentence

There's not a kernel of truth in what they say.

the kernel of your argument seems to be the inevitability of human migration into space

Recent Examples on the Web

By Stephanie Zacharek April 12, 2024 2:36 PM EDT There’s a kernel of poignance at the heart of Sasquatch Sunset, a film in which a family—or something—of four apelike creatures wander through the forests and mountains of what appear to be the California Redwoods. —Stephanie Zacharek, TIME, 12 Apr. 2024

Early in the spring season especially, they’re still used to eating hatchery pellets, which is ultimately why a little ball of Power Bait, a corn kernel, or salmon egg fools them. —Joe Cermele, Outdoor Life, 4 Apr. 2024

Word History

Etymology

Middle English, from Old English cyrnel, diminutive of corn

First Known Use

before the 12th century, in the meaning defined at sense 4

Phrases Containing kernel

• pine kernel

Kids Definition

kernel

noun

ker·​nel ˈkərn-ᵊl 

1

a

: the inner softer part of a seed, fruit stone, or nut

b

: a whole grain or seed of a cereal (as wheat or corn)

2

: a central or basic part

a kernel of truth in what they say