紡ぼう績せき突とっ起きぼうせきとっきじ字FuriganaMeanings1nounspinneret (of a spider)rare termRare, specialized zoological term. The more common word is 出糸突起 (しゅっしとっき).See also: 出糸突起クモの紡ぼう績せき突とっ起きから