tectrix

[tek-triks] /ˈtɛk trɪks/
noun, plural tectrices
[tek-truh-seez, tek-trahy-seez] /ˈtɛk trəˌsiz, tɛkˈtraɪ siz/ (Show IPA).
Ornithology
1.
covert (def 8).
Origin
1760-70; < Neo-Latin tēctrīx, equivalent to Latin teg(ere) to cover + -trīx -trix
Related forms
tectricial
[tek-trish-uh l] /tɛkˈtrɪʃ əl/ (Show IPA),
adjective
British Dictionary definitions for tectrix

tectrix

/ˈtɛktrɪks/
noun (pl) tectrices (ˈtɛktrɪˌsiːz; tɛkˈtraɪsiːz)
1.
(usually pl) (ornithol) another name for covert (sense 6)
Derived Forms
tectricial (tɛkˈtrɪʃəl) adjective
Word Origin
C19: New Latin, from Latin tector plasterer, from tegere to cover