7 letters · 9 points in Scrabble
adjective (of radiate organisms) located on the surface or end on which the mouth is situated
originFrom Ancient Greek ἀκτίς, ἀκτῖν- (aktís, aktîn-, “ray”) + -al. The usage was coined by Louis Agassiz (See quotations below.).
Etymology from Wiktionary, CC BY-SA 3.0