Dictionary

SD en · NOUN

Meanings

1. (abbreviation, alt-of, initialism, uncountable) Initialism of standard definition (“typically 640×480 pixels”).
   alt of standard definition
2. (abbreviation, alt-of, initialism) Initialism of school district.
   alt of school district
3. (abbreviation, alt-of, initialism) Initialism of sheriff's department.
   alt of sheriff's department
4. (abbreviation, alt-of, initialism) Initialism of standard deviation.
   alt of standard deviation
5. (abbreviation, alt-of, initialism) Initialism of self-destruct.
   alt of self-destruct
6. (abbreviation, alt-of, initialism) Initialism of segmental duplication.
   alt of segmental duplication
   • We estimated that the following percentage of elements were correctly assembled: 95.4% of alpha satellites; 91.5% of human satellites 2 and 3; 97.7% of segmental duplications (SDs); 94.3% of variable number tandem repeats (VNTRs); 94.2% of short tandem repeats (STRs); and 98.8% of all human repeats²⁶. 2023 May 11, Wen-Wei Liao, Mobin Asri, Jana Ebler, et al., “A draft human pangenome reference”, in Nature, volume 617, →DOI, page 313:
7. (abbreviation, alt-of, initialism, qualifier:relationships) Initialism of sugar daddy
   alt of sugar daddy

Forms

Coordinates

HD · SB

SD en · PROPN

Meanings

1. (abbreviation, alt-of, initialism, qualifier:postal) Initialism of South Dakota: a state of the United States.
   alt of South Dakota
2. (abbreviation, alt-of, initialism, uncountable) Initialism of Secure Digital: a non-volatile memory card format developed for use in portable devices.
   alt of Secure Digital
   • I had responsibility for safely extracting SD cards and manually uploading footage onto the server. 2023, Martin MacInnes, In Ascension, Atlantic Books, page 44:

Deriveds

SDIO (memory card format) · microSD (memory card format) · SDXC (memory card format) · miniSD (memory card format) · SDHC (memory card format)