We don't have synonyms for mucros yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are mucro, macros and micros.
(n) :
(botany, zoology) A pointed end, often sharp, abruptly terminating an organ, such as a projection at the tip of a leaf; the posterior tip of a cuttlebone; or the distal part of the furcula in Collembola.
(n) :
(botany, zoology) A pointed end, often sharp, abruptly terminating an organ, such as a projection at the tip of a leaf; the posterior tip of a cuttlebone; or the distal part of the furcula in Collembola.