Meanings

speculum (bright patch on the wings of ducks)

transept

left-wing party

samara

winged

pteraspids (extinct armoured jawless fishes)

right wing organization, esp. one using "black van" propaganda trucks

under the wing (esp. of an aircraft)

alula

rotary wing (aircraft)

butterfly needle

wing length (esp. of a bird)

left-leaning

Pteriomorphia (subclass of bivalve molluscs)

airfoil profile

petiole wing (leaf)

right fielder

flying wing

hydrofoil

online right-wingers