The story
From intrathecal + -ly: into the theca.
Etymology from Wiktionary, CC BY-SA 4.0.
intrathecally
Today it means: In an intrathecal way: into the spinal canal. One of various routes of administration for medications. Full definition →
Today it means: In an intrathecal way: into the spinal canal. One of various routes of administration for medications. Full definition →
From intrathecal + -ly: into the theca.
Etymology from Wiktionary, CC BY-SA 4.0.