botryoidal

形容词 adj.
/ˌbɒt.ɹiˈɔɪ.dəl/    /ˌbɑt.ɹiˈɔɪ.dəl/

英文释义

形容词 adj.
  1. Having the form of a bunch of grapes.
    — The oxyde of cobalt, […] is found either ſuperficial, interſperſed, or in lumps; ſometimes botryoidal or reniform or bearing particular impreſſions.

词形变化

more botryoidal comparative most botryoidal superlative

词源

By surface analysis, botry- + -o- + -id + -al.
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