a piece of wood let into a wooden hull to replace decayed wood.
/ˌɡrævɪpəˈsɛpʃən/ noun 1. the perception of gravity by plants
gravireceptor grav·i·re·cep·tor (grāv’ə-rĭ-sěp’tər) n. Any of various specialized receptor organs and nerve endings in the inner ear, joints, tendons, and muscles, that give the brain information about body position, equilibrium, and the direction of gravitational forces.
[grav-uh-sfeer] /ˈgræv əˌsfɪər/ noun 1. the area in which the gravitational force of a celestial body is predominant.
[grav-i-tahs, ‐tas] /ˈgræv ɪˌtɑs, ‐ˌtæs/ noun 1. seriousness or sobriety, as of conduct or speech. /ˈɡrævɪˌtæs/ noun 1. seriousness, solemnity, or importance n. 1924, from Latin gravitas “weight, heaviness;” figuratively, of persons, “dignity, presence, influence” (see gravity). A word that became useful when gravity acquired a primarily scientific meaning.