MeSH Browser

MeSH Heading: Pregnancy Trimester, Second
Tree Number(s): G08.686.707.490
Unique ID: D011262
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D011262
Annotation: human only
Scope Note: The middle third of a human PREGNANCY, from the beginning of the 15th through the 28th completed week (99 to 196 days) of gestation.
Entry Version: PREGN TRIMESTER SECOND
Entry Term(s): Midtrimester; Pregnancy, Second Trimester; Trimester, Second
Previous Indexing: Gestational Age (1968-1974); Pregnancy (1966-1974); Time Factors (1967-1974)
Public MeSH Note: 76; was PREGNANCY, SECOND TRIMESTER 1975
Online Note: use PREGNANCY TRIMESTER, SECOND to search PREGNANCY, SECOND TRIMESTER 1975
History Note: 76; was PREGNANCY, SECOND TRIMESTER 1975
Date Established: 1975/01/01
Date of Entry: 1975/07/25
Revision Date: 2015/06/23

Allowable Qualifiers: blood (BL)

cerebrospinal fluid (CF)

drug effects (DE)

ethnology (EH)

genetics (GE)

immunology (IM)

metabolism (ME)

physiology (PH)

psychology (PX)

radiation effects (RE)

urine (UR)

Concept UI: M0017489
Scope Note: The middle third of a human PREGNANCY, from the beginning of the 15th through the 28th completed week (99 to 196 days) of gestation.
Terms: Pregnancy Trimester, Second Preferred Term
Term UI T033186
Date01/01/1999
LexicalTag NON
ThesaurusID NLM (1975); Midtrimester
Term UI T033184
Date07/25/1975
LexicalTag NON
ThesaurusID UNK (19XX); Pregnancy, Second Trimester
Term UI T033185
Date07/25/1975
LexicalTag NON
ThesaurusID NLM (1976); Trimester, Second
Term UI T033187
Date07/25/1975
LexicalTag NON
ThesaurusID UNK (19XX)

Pregnancy Trimester, Second MeSH Descriptor Data 2025