- o. gustatorium [TA] SYN: gustatory organ.
- o. gustus [TA] SYN: gustatory organ.
- o. olfactus [TA] SYN: olfactory organ.
- organa sensuum SYN: sense organs, under organ.
- o. spirale [TA] SYN: spiral organ.
- o. subcommissurale SYN: subcommissural organ.
- o. subformicale [TA] SYN: subfornical organ. See circumventricular organs, under organ.
- o. tactus SYN: organ of touch.
- organa urinaria SYN: urinary organs, under organ.
- o. vasculosum laminae terminalis [TA] SYN: vascular organ of lamina terminalis. See circumventricular organs, under organ.
- o. vestibulocochleare [TA] SYN: vestibulocochlear organ.
- o. visus SYN: visual organ.
- o. vomeronasale [TA] SYN: vomeronasal organ.
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or·ga·num (orґgə-nəm) pl. orґgana [L., from Gr. organon tool, instrument] organ: a somewhat independent part of the body that is arranged according to a characteristic structural plan, and performs a special function or functions; it is composed of various tissues, one of which is primary in function.Medical dictionary. 2011.