"Entomologist" is a word in ENGLISH

One versed in acoustics.

One fully skilled or well versed in anything; a proficient; as, adepts in philosophy.

One versed in aeography: an aerologist.

One versed in aerology.

One versed in aesthetics.

One versed or engaged in agriology.

One versed in agronomy; a student of agronomy.

A kind of verse, so called from Alcaeus. One variety consists of five feet, a spondee or iambic, an iambic, …

One versed in algebra.

A prefix of one or two unaccented syllables to a verse properly beginning with an accented syllable.

One versed in the knowledge of animalcules.

One who is versed in anthropology.

One who is versed in anthropotomy, or human anatomy.

One not well versed in a subject; a tyro.

One well versed in the Arabic language or literature; also, formerly, one who followed the Arabic system of surgery.

One who is versed in, or studies, arachnology.

One who makes trees his study, or who is versed in the knowledge of trees.

One versed in archaeology; an antiquary.

One versed in Assyriology; a student of Assyrian archaeology.

One who is versed in astronomy; one who has a knowledge of the laws of the heavenly orbs, or the …