/ Dictionary / Index H habenula: Meaning and Definition of Find definitions for: ha•ben•u•la Pronunciation: (hu-ben'yu-lu), [key] — pl. -lae a narrow bandlike structure, as the stalk attaching the pineal gland to the thalamus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. habeas corpus Haber 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