Standard Lemma guide

thelarche

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • US: /θiˈlɑɹ.ki/

1

noun

Meaning 1

The first stage of postnatal breast development, usually occurring at the beginning of puberty in girls, in which a firm, tender lump develops under the centre of the nipple.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The process of breast development or the period of such development.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

the start of breast development in a woman at the beginning of puberty

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: start

History

Etymology

From Ancient Greek θηλή (thēlḗ, “nipple”) + -arche. By surface analysis, thel- + -arche.