ac·ti·nal 
(ăktĭ-nəl, ăk-tī-)
(ăktĭ-nəl, ăk-tī-)adj.
Of, relating to, or located on the part of a radially symmetric animal from which the tentacles radiate or the side where the oral area is found.
acti·nal·ly adv.
- Indo-European root: kob-
- Indo-European root: kom
- Indo-European root: konk-
- Indo-European root: koro-
- Indo-European root: kost-
- Indo-European root: kous-
- Indo-European root: krei-
- Indo-European root: kreus-
- Indo-European root: kreuə-
- Indo-European root: ksun
- Indo-European root: kwe
- Indo-European root: kwei-
- Indo-European root: kwei-
- Indo-European root: kweit-
- Indo-European root: kweiə-
- Indo-European root: kwel-
- Indo-European root: kwel-
- Indo-European root: kwen-
- Indo-European root: kwent(h)-
- Indo-European root: kwer-
- Indo-European root: kwes-
- Indo-European root: kwetwer-
- Indo-European root: kwo-
- Indo-European root: kwon-
- Indo-European root: kwrep-