diastereomer

[dahy-uh-ster-ee-uh-mer, -steer-]

noun Chemistry.

either of a pair of stereoisomers that are not mirror images of each other.

Nearby words

  1. diastema,
  2. diastematocrania,
  3. diastematomyelia,
  4. diaster,
  5. diastereoisomer,
  6. diastole,
  7. diastolic,
  8. diastolic murmur,
  9. diastolic pressure,
  10. diastolic thrill

Compare enantiomer.

Origin of diastereomer

First recorded in 1935–40; dia- + stereo(iso)mer

Also called di·a·ster·e·o·i·so·mer [dahy-uh-ster-ee-oh-ahy-suh-mer, -steer-] /ˌdaɪ əˌstɛr i oʊˈaɪ sə mər, -ˌstɪər-/.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for diastereoisomer

diastereoisomer

noun

chem a type of isomer that differs in the spatial arrangement of atoms in the molecule, but is not a mirror image; a stereoisomer that is not an enantiomer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012