noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A vertical-takeoff aircraft whose fuselage is perpendicular to the ground at takeoff.
2. 2
   A vertical-takeoff spacecraft whose fuselage is perpendicular to the ground at both takeoff and landing; a spacecraft that can land vertically.

Etymology

From tail + sitter.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.