triradiateWiktionary 原文构词拆分tri-前缀Three. · (chemistry) Used for the digit three to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name.+radiate词根/词干词源说明From tri- + radiate.释义（英文）形容词 AdjectiveHaving or consisting of three rays; radiating in three directions from a central point; three-rayed, trifurcate.名词 NounA triradiate sponge-spicule.词族派生词（1）triradiately