helianthus

C2+ Topic:Plants & Agriculture

US /ˌhiːliˈænθəs/ UK /ˌhiːliˈænθəs/ See IPA manual

noun

Meanings

1

noun
a plant of the sunflower genus, with large radiate flower heads

Rows of towering helianthus turned their faces toward the sun.

Thesaurus

Synonyms

1 noun · a plant of the sunflower... sunflower

Word family

Related forms heliotrope helium

Etymology

Modern Latin coinage from Ancient Greek helios ('sun') plus anthos ('flower'), so 'sun-flower', named for the radiate, sun-like flower heads.

helios Ancient Greek anthos Ancient Greek

View etymology graph ->

Topics

Plants & Agriculture

# helianthus

**Type:** Word
**Level:** C2+
**Part of speech:** noun
**IPA (US):** ˌhiːliˈænθəs
**IPA (UK):** ˌhiːliˈænθəs

## Meanings
1. a plant of the sunflower genus, with large radiate flower heads

## Examples
- Rows of towering helianthus turned their faces toward the sun.

## Synonyms
- sunflower

## Related Forms
- heliotrope
- helium

## Roots and Affixes
- Root: helios
- Root: anthos

## Etymology
Modern Latin coinage from Ancient Greek helios ('sun') plus anthos ('flower'), so 'sun-flower', named for the radiate, sun-like flower heads.

## AI Etymology
helianthus is a modern Latin coinage from Ancient Greek helios ('sun') plus anthos ('flower'), so 'sun-flower', named for the radiate, sun-like flower heads. The path is chiefly one of transmission: the word passes through the named languages and forms, with each stage preserving part of the modern shape. In present English, the noun sense is "a plant of the sunflower genus, with large radiate flower heads", so the historical development ends in a clearly identifiable modern dictionary use. The same base also appears in related forms such as heliotrope and helium. Its semantic neighborhood includes sunflower, which helps locate the modern sense without adding a separate etymological claim. The named historical forms include Ancient Greek helios and Ancient Greek anthos.

## Topics
- Plants & Agriculture

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helianthus

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