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English

athyreosis

|a-thy-re-o-sis|

C2

🇺🇸

/ˌæθaɪˈriːoʊsɪs/

🇬🇧

/ˌæθaɪˈriːəʊsɪs/

absence of the thyroid gland

Etymology
Etymology Information

'athyreosis' originates from Greek elements used in Neo-Latin medical formation: the prefix 'a-' (privative, meaning 'without'), the root 'thyreos' (Greek for 'shield', referring to the thyroid's shape), and the suffix '-osis' (meaning 'condition').

Historical Evolution

'athyreosis' was formed in Neo-Latin/modern medical Latin from Greek elements and then adopted into English medical terminology with the same formation.

Meaning Changes

Initially formed to denote the condition 'without a thyroid (gland)'; this specific meaning has been retained in modern medical usage.

Meanings by Part of Speech

Noun 1

absence (especially congenital absence) of the thyroid gland; a condition resulting in lack of thyroid tissue and often leading to hypothyroidism.

The infant was diagnosed with athyreosis shortly after birth and started hormone replacement therapy.

Synonyms

Antonyms

Last updated: 2025/11/11 06:50