Bekhorot 40: words to know

חַסּוֹרֵי מִיחַסְּרָא (khasorei mekhasra): it is missing text and should read as follows. The Gemara uses this formula to emend an apparently redundant clause in the mishna regarding testicles.
וּרְמִינְהוּ (ureminhu): and they raised a contradiction. Introduces a contradictory mishna from tractate Nidda concerning fetal eye shapes.
תְּיוּבְתָּא (tyuvta): a conclusive refutation. Marks the decisive rejection of Rav Huna's position based on an explicit baraita.
מִכְּדֵי (mikdei): now consider; given that. Introduces a challenge questioning why a distinction was drawn when the biblical verse is unspecified.
אִידֵּי וְאִידֵּי (idei ve'idei): both this case and that case. Used to reframe an answer by asserting that both conflicting sources actually discuss a wart in the eye.