/ Dictionary / Index I isocline: Meaning and Definition of Find definitions for: i•so•cline Pronunciation: (ī'su-klīn"), [key] — n. Geol. a fold of strata so tightly compressed that both limbs dip in the same direction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isoclinal isoclinic line Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language