Odescalchi	1_003 ; 3_025 ; 4_049 ; 5_002 ; 6_102 ; 9_034 ; 9_035 ; 10_001 ; 10_027
offerta	2_044
offerte	9_072
Oidium	8_040
olii	1_033 ; 10_057
olio	1_036
olivo	10_033
omaggio	2_017
omogenee	1_022
onde	9_034
ondoso	6_009 ; 6_041 ; 8_053 ; 10_004
onorari, membri	1_008
onorari, soci	9_088
onorario, linceo	5_004
onorario, socio	6_009 ; 10_004
opposizione	4_022
opuscoli	8_069 ; 10_031
orarie	3_017
Orazio	10_055
orbita	4_004 ; 4_007 ; 6_017
ordinale	10_027
ordinari	1_002 ; 3_058 ; 5_098 ; 5_102 ; 6_104 ; 7_079 ; 8_081 ; 9_088 ; 9_094 ; 10_003 ; 10_115
ordinario, membro	1_017 ; 1_021 ; 1_026 ; 1_027 ; 8_073
ordinario, socio	1_006 ; 2_001 ; 2_002 ; 2_013 ; 2_021 ; 2_059 ; 3_001 ; 3_003 ; 3_014 ; 3_017 ; 3_030 ; 4_001 ; 4_002 ; 4_003 ; 4_004 ; 4_005 ; 4_008 ; 4_009 ; 4_012 ; 4_017 ; 4_023 ; 4_027 ; 4_033 ; 4_049 ; 5_001 ; 5_005 ; 5_006 ; 5_008 ; 5_009 ; 5_010 ; 5_011 ; 5_015 ; 5_016 ; 5_020 ; 5_021 ; 6_001 ; 6_003 ; 6_004 ; 6_006 ; 6_008 ; 6_014 ; 6_015 ; 6_023 ; 6_094 ; 7_001 ; 7_005 ; 7_008 ; 7_013 ; 7_016 ; 7_021 ; 8_001 ; 8_002 ; 8_004 ; 8_005 ; 8_008 ; 8_011 ; 8_028 ; 9_001 ; 9_003 ; 9_004 ; 9_011 ; 9_013 ; 9_014 ; 9_017 ; 9_088 ; 10_001 ; 10_002 ; 10_005 ; 10_006 ; 10_007 ; 10_008 ; 10_009 ; 10_011 ; 10_026 ; 10_027 ; 10_027 ; 10_027 ; 10_029 ; 10_032 ; 10_081
ordine	1_018 ; 2_012
organi	5_026 ; 6_031
organici	9_011
organizzazione	4_033
origine	4_041
Orioli	2_032 ; 3_042 ; 3_045 ; 3_047 ; 3_049 ; 8_011 ; 8_075 ; 9_073 ; 10_027
orizzontale	8_017
orologio	9_012
Orsini	5_017
orticoltura	10_094
orto	5_021
osculatrici	3_035
osfodello	8_038
ossequiare	3_024
osservate	4_039
osservato	3_003
osservatorio	3_033 ; 4_007 ; 4_018 ; 4_035 ; 5_018 ; 5_031 ; 6_014 ; 7_001 ; 8_004 ; 8_027 ; 9_001 ; 9_018 ; 9_033 ; 9_066 ; 10_013
ossideo	4_060 ;
ossigenate	6_048
osteotomico	5_061
Ottaviano	6_065
ottiche	4_015
ottobre	2_023 ; 10_007
ottone	7_029
Oudinot	2_022
ouvrages	10_018