We found 5 dictionaries that define the word sigmoid veins:

General (1 matching dictionary)

1. sigmoid veins: TheFreeDictionary.com

Computing (1 matching dictionary)

2. sigmoid veins: Encyclopedia

Medicine (3 matching dictionaries)

3. Dorland's Illustrated Medical Dictionary (No longer online)
4. online medical dictionary (No longer online)
5. sigmoid veins: Medical dictionary

(Note: See sigmoid_vein as well.)

Definitions from WordNet (sigmoid vein) ▸ noun:  tributaries of the inferior mesenteric vein; drains the sigmoid colon ▸ Also see sigmoid_vein ▸ Words similar to sigmoid veins ▸ Usage examples for sigmoid veins ▸ Idioms related to sigmoid veins ▸ Wikipedia articles (New!) ▸ Words that often appear near sigmoid veins ▸ Rhymes of sigmoid veins ▸ Invented words related to sigmoid veins