One entry found for spine.

Main Entry: spine
Pronunciation: spn
Function: noun
Etymology: Middle English spine "thorn, spinal column," from Latin spina (same meaning) --related to PORCUPINE
1 a : BACKBONE 1 b : something resembling a backbone c : the part of a book to which the pages are attached
2 : a stiff pointed usually sharp projecting part of a plant or animal <protective spines cover the body of a porcupine fish> <cactus spines are formed from leaves>

Pronunciation Symbols