/ English Dictionary

PRE-EXISTING

Pronunciation (US):

(GB):

 I. (adjective) 

Sense 1

Meaning:

Existing previously or before something

Example:

variations on pre-existent musical themes

Synonyms:

pre-existent; pre-existing; preexistent; preexisting

Classified under:

Adjectives

Similar:

antecedent (preceding in time or order)

 II. (verb) 

Sense 1

-ing form of the verb pre-exist

Credits

 Context examples: 

This condition usually occurs in persons with pre-existing cardiac abnormalities or disease.

(Non-Sudden Cardiac Death, NCI Thesaurus)

A rare melanoma which develops in a pre-existing blue nevus.

(Melanoma Arising from Blue Nevus, NCI Thesaurus)

A vascular lesion in the papillary dermis resulting from ectasia of pre-existing vessels.

(Angiokeratoma, NCI Thesaurus)

A sarcomatous transformation of pre-existing Paget disease of the bone.

(Osteosarcoma Arising in Paget Disease of Bone, NCI Thesaurus)

A carcinoma arising in a pre-existing pleomorphic adenoma.

(Carcinoma ex Pleomorphic Adenoma, NCI Thesaurus)

C. hominis is commensal in the human nasal flora, but is associated with culture negative endocarditis after a dental procedure, especially in those with a pre-existing heart valve disorder or a prosthetic valve.

(Cardiobacterium hominis, NCI Thesaurus)

It may arise de novo or as a malignant transformation of a pre-existing poroma.

(Eccrine Porocarcinoma, NCI Thesaurus)

A very rare ameloblastic carcinoma that originates from a pre-existing intraosseous benign ameloblastoma.

(Ameloblastic Carcinoma-Secondary Type (Dedifferentiated), Intraosseous, NCI Thesaurus)

A very rare ameloblastic carcinoma that originates from a pre-existing extraosseous benign ameloblastoma.

(Ameloblastic Carcinoma-Secondary Type (Dedifferentiated), Peripheral, NCI Thesaurus)

For the latter group, the team measured pre-existing HA stem antibody levels with an enzyme-linked immunosorbent assay (ELISA) blood test and obtained additional blood samples 30 to 45 days later.

(New study reveals a novel indicator of influenza immunity, National Institutes of Health)

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